| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | JPH045154B2 - | JP17630784 | 1984-08-24 | JPH045154B2 | 1992-01-30 | |
| 242 | Method and device for beam management of phase array radar | JP1959890 | 1990-01-30 | JPH03225287A | 1991-10-04 | YANAGISAWA MOTOI |
| PURPOSE: To obtain the high performance of a radar by synchronizing the transmission timing of plural phased array antennas(PAA) and preventing the transmission timing of the PAA from being overlapped on a received signal processing time by setting the longest distance of each PAA as a reference. CONSTITUTION: Target signals received by the PAAs 1-4 are respectively computed in terms of tracking in tracking computers 17-20 and the tracking target items(distance and transmission pulse width, etc.) thereof are collected in a PRT(pulse repetition cycle) selection computer 21 and grouped into three by each target PRT. Then, they are respectively inputted in timing computers 22-24 for the PRTs 1-3 and the transmission timing of the PAAs 1-4 is computed by using a tracking target distance in a state where the target longest distance is taken as the reference. The transmission timing and the position of a searching beam for the PAAs 1-4 which is computed by a searching beam position computer 26 are unified by a scheduler 25, thereby performing the assignment of the time for searching and tracking to the PAAs 1-4. The scheduler 25 simultaneously drives BSCs(beam scanning computers) 1-4 and transmitters 9-12 according to the assignment of the time. COPYRIGHT: (C)1991,JPO&Japio | ||||||
| 243 | JPH039431B2 - | JP3845381 | 1981-03-17 | JPH039431B2 | 1991-02-08 | IKEDA AKIRA |
| 244 | Reedatsuibihoshiki | JP3961583 | 1983-03-09 | JPH0228109B2 | 1990-06-21 | MITSUBORI TAKASHI |
| 245 | Target locating device | JP18014389 | 1989-07-12 | JPH0267985A | 1990-03-07 | BERUNARUDO HERUREKINKU; KORUNERISU MARINUSU YANSEN |
| PURPOSE: To process target signals having completely different properties by forming a target signal processing unit so that target signals can be processed combinedly. CONSTITUTION: The target locating device 1 is provided with a directable radiation and detection device 2. The device 2 is provided with a microwave reflecting means which transmits and receives microwave radiation and supplies IR signals to an infrared (IR) receiver 4 and reflected laser pulses to a laser receiver unit 5. A radar transmitter-receiver 3 generates signals ΔB, ΔE1 , and ΔR1 respectively supplying the azimuth, angle of elevation, and range information of a target. Lines 12 and 13 supplies signals ΔB4 and ΔE4 regarding the azimuth and angle of elevation information of the target obtained in an IR region and a line 14 supplies a signal ΔR3 regarding the range information of the target obtained by means of the unit 5. Signals on lines 6-11 are supplied to a coupling unit 15 and a quality unit 16. The unit 16 introduces target indicating signals ΔB, ΔE, and ΔR which are supplied to an evaluation unit 21. | ||||||
| 246 | Phased array radar device | JP31328987 | 1987-12-11 | JPH01153989A | 1989-06-16 | YOKOYAMA HIROSHI |
| PURPOSE: To improve detecting and tracking performance for a short-distance target by detecting and tracking targets at data rates matching with long- distance and short-distance targets. CONSTITUTION: A control signal from a control data memory 21 is sent to a transmission trigger generator 16 and a pulse width generator 14 through a PRF memory 17 and a pulse width memory 15. Further, the signal from the memory 21 is sent to an antenna 5 through a beam controller 8. A pulse signal outputted from the generator 14 is applied to a pulse modulator 13 and a high-frequency continuous wave from a coho is pulse-modulated into a high-frequency signal, which is mixed with a signal applied from a frequency converter 11 from a local oscillator 12 and radiated in the air through a transmitter 7, a transmission/reception separating circuit 6, and an antenna 5. The composite signal when received is sent to a receiver by the antenna through the circuit 6. Further, the output signal of the coho 10 is applied to a modulator 13 and a system clock generator 19 and counted down to become the system clock of the whole device. COPYRIGHT: (C)1989,JPO&Japio | ||||||
| 247 | Tracking filter | JP13369584 | 1984-06-28 | JPS6111681A | 1986-01-20 | NOMOTO KOUHEI; OOMURO TAKASHI |
| PURPOSE:To perform the optimum estimation of a forecasting position by using an optimum estimation gain based upon residual variance between a forecasting position before sampling time and a new observation position by a radar, etc. CONSTITUTION:The tracking filter which estimates or forecasts the observation data, target position, and speed of the radar, etc., supplies an estimation gain controller 2 with the residual variance that a variance estimating device 1 estimates from the residual nut between the new observation position Zt by the radar, etc., and the forecasting position before the sampling time. Then, the controller 2 performs arithmetic minimizing the estimated error variance to calculate the optimum estimation gain K1 for determining whether the contribution of the observation data is large or not when the current position of a moving target is estimated, an optimum estimating device 3 estimates and outputs the current position of the target according to the gain K1, and a target motion simulator calculates and outputs the target position in next sampling. This optimum gain is used to estimate whether the contribution of the observation is large or not, and consequently even when the target has variation in motion characteristic, tracking corresponding to the variation is carried out. | ||||||
| 248 | Radar automatic position measuring device | JP2400384 | 1984-02-10 | JPS60168064A | 1985-08-31 | TOMIOKA GENICHIROU; SEKINE CHIYOUGO |
| PURPOSE:To calculate automatically the own position of a ship and to always display its latitude and longitude by tracking automatic with respect to a reflected signal from a specified geographical point. CONSTITUTION:A reference target selector 2 selects a reference target which is the nearest to the latitude and longitude of an initial position of the own ship fed to an initializing input 8, out of reference targets in a storage device 1, calculates the range and the azimuth to the nearest reference target from the initial position of the own ship, and sends them out to a catch controller 3. The controller 3 controls a tracking device 4 so that the tracking device 4 executes a tracking operation with respect to a reflected signal from a specified geographical point from in a video signal received from a radar device 5. The tracking device 4 calculates the range and the azimuth to the reference target, and sends them to a position operator 6. The operator 6 calculates the latitude and longitude of the own ship position based on a data from the selector 2 and supplies them to an indicator 7. | ||||||
| 249 | Tracking apparatus | JP1957884 | 1984-02-06 | JPS60164274A | 1985-08-27 | TSUKADA HIDEAKI |
| PURPOSE:To realize an inexpensive tracking apparatus by constructing a means of stabilizing a tracking direction line sufficiently against disturbance without use of a costly element such as rate integration gyro and rate gyro. CONSTITUTION:Difference between specifications 1 of the target position and a target direction line 12 of a servo 11 is detected with an adder 2 and a tracking error is outputted from a tracking error detector 3. This output is added to the angle position of the tracking direction line of the servo 11 with an adder 4 to calculate the corrected target position, which is converted with a P/C coordinates converter 5 by the output of a disturbance detector 14 and fed to a tracking filter 6 serving as the corrected target position of a horizontal plane reference rectangular coordinate system. The filter 6 projects the future position of the target and inputs it into a C/P coordinate converter 7. The signal following the conversion is fed to a position control servo 11 to energize a driving mechanism thereof so that it is controlled to decrease the output of the tracking error detector 3. | ||||||
| 250 | Target tracking apparatus | JP22345583 | 1983-11-28 | JPS60114779A | 1985-06-21 | YANAGISAWA MOTOI |
| PURPOSE:To prevent the generation of a measuring error, by bringing an elevation tracking loop to a closed loop by utilizing the relation of the altitude, distance and speed of a target to AGC voltage. CONSTITUTION:In order to utilize such a characteristic that the point of time for making AGC voltage min. in a tracking apparatus is coincided with the point of time when a positive tracking error becomes max., output of an AGC circuit 11 is inputted to a peak detecting and cycle calculating circuit 12 to calculate a cycle for generating a min. value and the calculated result is inputted to an altitude calculating circuit 13. This circuit 13 calculates altitude on the basis of the target distance information and speed from a distance tracking circuit 3, the speed information from an altitude calculating circuit 10 and the cycle for generating said max. value. In tracking a low altitude target, change-over devices 15, 16 are operated to output the output H of the altitude calculating circuit 13. An antenna elevating angle is calculated on the basis of target distance information and the calculated altitude of the altitude calculating circuit 13 by an elevation calculating circuit 14 and an antenna 1 is controlled by the result thereof. | ||||||
| 251 | Radar equipment | JP13630183 | 1983-07-26 | JPS6027875A | 1985-02-12 | HARAYAMA MITSUHARU |
| PURPOSE:To enable simultaneous searching and tracking of targets at long and short distances by synthesizing a plurality of transmission pulses different in the frequency and pulse width in a time series and transmitting them, which are then received through a plurality of optimal BPFs. CONSTITUTION:Transmission pulses A and B with the frequencies f1 and f2 and the pulse widths z1 and z2 of transmission pulse generators 11 and 11 are added with an adder 13 to make a synthesized transmission pulse C, which is inputted into an amplifier 10 and radiated from an antenna 1 through a circulator 2. On the other hand, a radar reflection signal inputted from the antenna 1 is mixed with a received reflected wave IF by a mixer 3 through a circulator 2 to make a signal D, which is distributed with a distributor 12 and passed through BPFs 5 and 5 with the center frequencies fIF1 and fIF2 to create video outputs E and F with a detector 6. The band widths B1 and B2 of the BPEs 5 and 5 are set at 1.2/z1 and 1.2/z2 to make an optimal filter with respect to the reflected wave IF thereby enabling the detection of optimum signals without deterioration in S/N ratio. | ||||||
| 252 | Tracking apparatus | JP9852883 | 1983-06-02 | JPS59222780A | 1984-12-14 | NAGASHIMA KOUJI |
| PURPOSE:To lower a ratio to be detected by disabling the passive sensor of a target, by reducing a transmission pulse according to the movements of the target. CONSTITUTION:A tranmitter-receiver 2 sends the transmission pulse from a transmitter 8 toward a target 1 and inputs a receiving signal impinged to and reflected from the target 1 to output the same to a receiver 3. The tracked position of the target 1 is outputted to a measuring calculator 5 to calculate a speed signal 6 and an acceleration signal 7. The transmitter 8, to which the acceleration signal 7 is inputted, automatically changes the interval of the transmission pulse so as to narrow the same when the acceleration signal 7 is large and to contrarily widen the same when the acceleration signal is small. | ||||||
| 253 | Tracking apparatus | JP9852783 | 1983-06-02 | JPS59222779A | 1984-12-14 | NAGASHIMA KOUJI |
| PURPOSE:To lower a ratio to be detected by disabling the passive sensor of a target, by reducing a transmission pulse according to the movements of the target while changing the transmission cycle of the transmission pulse at random. CONSTITUTION:A transmitter-receiver 2 outputs the transmission pulse from a transmitter 8 toward a target 1 and inputs a receiving signal reflected from the target 1 to output the same to a receiver 3. A measuring calculator 5 calculates a speed signal 6 and an acceleration signal 7 from the position of the target 1. The transmitter 8, to which the acceleration signal 7 is inputted, automatically changes the interval of the transmission pulse so as to narrow the same when the acceleration signal 7 is large and to contrarily widen the same when the acceleration signal 7 is small and changes the sending cycle of the transmission pulse at random. | ||||||
| 254 | Tracking apparatus | JP9852683 | 1983-06-02 | JPS59222777A | 1984-12-14 | NAGASHIMA KOUJI |
| PURPOSE:To lower a ratio to be detected by disabling the passive sensor of a target, by reducing a transmission pulse according to the movements of the target while changing the transmission cycle of the transmission pulse at random. CONSTITUTION:A transmitter-receiver 2 transmits a transmission pulse to a target 1 from a transmitter 8 and inputs a reflected signal from the target 1 to output the same to a receiver 3. The transmitter 8, to which a tracking error signal 4 is inputted, automatically changes the interval of the transmission pulse so as to narrow the same. When the tracking error signal is large and to contrarily widen the same when the tracking error signal is small while changes the transmission cycle of the transmission pulse in random. The tracked position of the target 1 is outputted to a measuring calculator 6. | ||||||
| 255 | Radar tracking system | JP7025483 | 1983-04-21 | JPS59195172A | 1984-11-06 | MITSUBORI TAKASHI |
| PURPOSE:To prevent automatically the influence of another target superposing on the aimed target and to continue stably the tracking, by providing an auxiliary radar tracking part for tracking another target appearing near the video of the target under tracking by a main radar tracking part. CONSTITUTION:A radar tracking system is provided with a main radar tracking part 16 which tracks the video formed by a target to be observed and provides the tracking data thereof to other associated apparatus, an auxiliary radar tracking part 17 which tracks once the video formed by the other target appearing near the target under tracking and provides the tracking data thereof to said apparatus, a signal processing part 15 which calculates the kinetic data of the respective targets under tracking, makes extrapolated prediction calculation in accordance with the results obtd. by such calculation and performs decision of whether the respective targets overlap on each other or not and the calculation for the timing when the targets overlap on each other and a control part 23 which changes over the inside parts of the respective tracking parts according to the signals from the respective parts. If the video of the other target having no relation with the target under tracking is to overlap on the video of the target under tracking, both targets are tracked by the respective tracking parts and the timing when the two targets overlap is decided from the obtd. tracking data. The predicted tracking is accomplished during said time. | ||||||
| 256 | Induction system of moving body | JP3740083 | 1983-03-09 | JPS59163580A | 1984-09-14 | KOUNO KATSUMI; KOSAKA MITSUTAKA; YASUNOBU SEIJI; MIYAMOTO SHIYOUJI |
| PURPOSE:To execute induction with high accuracy by considering an induction algorithm and a feature regarding the movement of a target, and selecting and applying the induction algorithm being suitable for a state as occasion arises in response to the state at the time. CONSTITUTION:A kind TAG of a foresight information target is read. The TAG is stored in a memory, etc. in an operating device 3, and can be updated. Subsequently, a tracking data at time tk is read. The tracking data is given from an estimating mechanism 2. Subsequently, from this data, the relative distance RNG of a target and a moving body, a target speed VEL, and an angle TH made by a target speed direction and an irradiating ray are calculated. Next, RNG, TH and VEL are stndardized. Also, the mobility SCT of the target is derived by inferring target maximum acceleration UEMAX and a target maximum swirling angle PHIMAX. Thereafter, an availability of each algorithm is derived to select the selection of the algorithm. | ||||||
| 257 | Correlation system of target data | JP17614482 | 1982-10-08 | JPS5965780A | 1984-04-14 | KOSAKA MITSUTAKA; MIYAMOTO SHIYOUJI |
| PURPOSE: To improve the correlation accuracy of a target data, by applying a relative likelihood ratio inspecting system to the decision of correlation in consideration of a density distribution of correlation parameter. CONSTITUTION: The data X 1 (i) on a circuit 14 is stored in a register 4. The value of X 2 (j) (j=1Wn 2) is sent from a circuit 13 with a fixed time interval. The data of registers 4 and 5 are sent to (n) units of parallel operators 6, and the approximate value of logarithmic likelihood ratio function is read out. These values are added together by an adder 8 to calculate T(x) to be sent to deciders 9 and 10. The decider 10 sends a signal to a register 11 in the case of T(x)<C ε; while the decider 9 stores the value T 0 of the minimum T(x) among hiterto decisions and compares it with the value of the present T(x). Then the signal is sent to the register 11 only in the case of T 0>T(x). Receiving signal from both deciders 9 and 10, the register 11 fetches the contents of a counter 12. The value of this counter 12 shows a correlated estimated data number. COPYRIGHT: (C)1984,JPO&Japio | ||||||
| 258 | Method and device for forming ship image containing distance/azimuth/inclination in order to control weapon | JP11003183 | 1983-06-17 | JPS5927281A | 1984-02-13 | SORU BOORUZU |
| Capability is provided for producing 3 scaled high resolution orthogonal image projections on a CRT of a ship under the influence of translational as well as rotational motions arising from sea state conditions, for the purpose of ship target identification and classification, and the subsequent carrying out of stand-off command weapon guidance to a designated resolution cell of the ship from an airborne platform. Doppler processed interferometric azimuth and elevation angle measurements of the ship scatterers derived from a coherent synthetic aperture radar are combined in a weighted multivariate regression fit using digital signal processing techniques to provide measures of ship translational and rotational motions essential to providing focussed high resolution imagery and precision standoff weapon delivery to the designated ship target resolution cell. The invention also provides a capability for scaling the cross-range (doppler) dimension of Inverse SAR Profile Imagery. | ||||||
| 259 | Tracking filter | JP1918382 | 1982-02-09 | JPS58135978A | 1983-08-12 | OOMURO TAKASHI; TACHIBANA YASUO |
| PURPOSE:To make an estimated value of a tracking filter follow a change in the motion of a target by a method wherein a fading memory filter is adopted, a parameter determining the weighting of the filter is decided appropriately from an error between the estimated value and an observed value, and an estimation is performed based on said parameter. CONSTITUTION:A gain matrix calculator is constituted by a digital circuit which receives a digital signal of a parameter rhok as an input and delivers each element of a gain matrix Kk as a digital signal. On the other hand, a parameter deciding unit 8 is constituted by a digital circuit which receives a digital signal of a residual ek as an input and delivers the digital signal of the parameter rhok. By this constitution, an estimation having the same accuracy as usual can be made when a target makes a linear motion. Even when the target turns to a circular motion, a digital signal value of an estimated value gammak+1 of a tracking filter following the change in the motion of the target can be delivered by converting the value of the residual ek into the value of the parameter rhok and by feeding back this value to a gain of the tracking filter. | ||||||
| 260 | Cw target tracking radar device | JP1701482 | 1982-02-05 | JPS58135477A | 1983-08-12 | TAJIMA KUNIO |
| PURPOSE:To track a target which is laterally travelling, by applying a modulated signal to an FM modulator from a triangular wave generator to apply modulation to the frequency of a transmitting signal, and then detecting an antenna control signal from pseudo Doppler that is generated in response to a distance. CONSTITUTION:The Doppler frequency delivered from a travelling target is tracked and caught by a detector 5, and a target azimuth error signal contained on the Doppler is extracted to be used as an antenna control signal. Then a transmitting antenna 1 and a receiving antenna 3 are directed to the target to perform tracking. First a triangular frequency modulation is applied to a signal transmitter 2 with the signal produced from a triangular wave generator 16. In this case, a puseudo Doppler signal is delivered from a signal receiver 4 and supplied to the detector 5. In a tracking mode to track a target travelling laterally, the Doppler frequencies are compared with each other between positive and negative inclination periods of a triangular wave. Then a command is applied to the detector 5 from a controller 7 to sample the larger one. Thus a trackable antenna control signal is delivered. | ||||||
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