序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
181 Method and system for determining the position and velocity of the target in inertial space JP50626089 1989-05-05 JP2931348B2 1999-08-09 UUREI RICHAADO ERU
182 Target pursuit method and device thereof JP9975298 1998-04-10 JPH1114741A 1999-01-22 SEN JINZUI
PROBLEM TO BE SOLVED: To pursue a target by a block conformity system. SOLUTION: A first rectangular gate containing a target is formed in the image of a first frame, and a second rectangular gate is formed in the image of a secondary frame timely connected to the first frame. In the image of the first rectangular gate and the image of the second rectangular gate, a picture element contained in a moving territory is discriminated, and the degree of block conformity between the image of the first rectangular gate and the image of the second rectangular gate is searched for by using the picture element of the moving territory. A plurality of the second rectangular gates are formed, the degrees of block conformity are searched for therefrom, a plurality of the degrees of block conformity are compared with each other, the second rectangular gate accompanying the maximum degree of block conformity is determined, and the positional difference of the first rectangular gate and the second rectangular gate is set to be the moved quantity of the target.
183 System and method for dislaying traced object on display device JP4994798 1998-01-26 JPH10326174A 1998-12-08 DELAHUNTY STEPHEN G
PROBLEM TO BE SOLVED: To eliminate the need to use a CPU much and to display many traced objects at the same time by displaying the latest position and previous positions which are displayed in order by not masking overlay data having corresponding pixel values. SOLUTION: An application program calls a function (129) to instruct a device driver to update the value of the pointer at its latest position, and decrease the latest position pointer so that the latest position pointer has a new value (130). Further, the device driver sets overlay mask values of all pixel interpretation table entries regarding previous traced positions of traced objects to zero (131). Then, the device driver displays the oldest traced positions of the traced objects first together with the latest positions and then displays the previous traced positions in order to the latest positions. COPYRIGHT: (C)1998,JPO
184 Tracking radar signal generator JP20204297 1997-07-28 JPH1078480A 1998-03-24 KIN KEISHU
PROBLEM TO BE SOLVED: To develop a tracking algorithm of a radar control unit even if development of a tracking radar is not yet completed by combining tracking and general target signal with a noise signal, and generating a video signal for testing the control unit. SOLUTION: A timer 200 inputs a master clock, a pulse repetition frequency (PRF) different depending upon type of a radar, and a tracking and general target distance. A synchronizing signal generator 210 amplifies a signal output to a channel CH1 by an amplifier 216 according to a PRF signal, and outputs an analog synchronizing signal. After tracking and general target distances are converted to times by the timer 200 and output to CH2 and CH3, then amplified by amplifiers 222, 226, and applied to an analog adder 228 of a video signal generator 220. A noise generator 230 forms a noise signal by using data stored in a random data table 232, and inputs it to the adder 228 real time. The adder 228 combines the tracking and general target signals with the noise signal, and outputs a video signal.
185 How to measure the traffic lane of the vehicle JP50137596 1995-06-07 JPH10501342A 1998-02-03 ラース エリクソン,; ベート−エリク トゥルッソン,
(57)【要約】 本発明は、例えばレーダ装置のような送信機/受信機装置によって自分自身の車両(23)に対する他の車両(25)の位置を測定することによって、自分自身の車両(23)に対する他の車両(25)のコースを測定する方法に関する。 本発明の方法によって、直線部分およびカーブ部分の両者においてコースを測定することができる。 本発明の方法によれば、他の車両と自分自身の車両の横方向の位置(d)が、他の車両の位置の位置測定に基づいて、前方の車両を適時、後方に移動させおよび/または後方の車両を適時、前方に移動させることによって、他の車両が自分自身の車両と同じレベルになった位置で測定される。 他の車両の横方向の位置を自分自身の車両の横方向の位置と比較して、他の車両のコースと自分自身の車両のコースの差の尺度が得られる。 本発明によれば、他の車両が自分自身の車両と同じレベルになったときの位置が、適時、一つ以上の点における他の車両(25)の慣性速度ベクトルに基づいて測定される。
186 Les - da equipment JP20890384 1984-10-04 JPH0627808B2 1994-04-13 JINRIKI MASANORI; AZEYANAGI TOSHIRO; CHOKAI YOSHIHIRO
187 Monitoring system for airplane position JP3054792 1992-02-18 JPH05234000A 1993-09-10 KURODA YUICHI; MIZUNA YOSHIKATSU
PURPOSE: To make the realtime and consecutive monitoring of airplanes by discriminating the presence or absence of correlation with traffic files and condition conformity state on monitoring information automatically and periodically sent from airplanes and performing the updating of the existing files, the preparation of files or follow-up processing after rejection of ADS data. CONSTITUTION: An air sub system 11 acquires the position information of the self plane obtained by a navigation device 11a and its additional information by an ADS on plane device 11b automatically and synchronously to be transmitted to an earth station 2 through an antenna 11c. The earth station 2 sends ADS data to a monitor 22. A tracking processing section converts the content of the ADS data inputted through the earth line interface into a prescribed format by the input processing section to send the result to a deciding part. Then, the content of the ADS data and the track data of the monitor file prepared based on the flight plan information are collated to discriminate the presence or absence of correlation. When judged to be collated, the updating control section updates the traffic file. COPYRIGHT: (C)1993,JPO&Japio
188 JPH02504428A - JP50626089 1989-05-05 JPH02504428A 1990-12-13
189 Tsuibisochi JP9852783 1983-06-02 JPH0228112B2 1990-06-21 NAGASHIMA KOJI
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.
190 Tsuibisochi JP9852683 1983-06-02 JPH0228111B2 1990-06-21 NAGASHIMA KOJI
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.
191 Tracking filter JP3024985 1985-02-20 JPS61191977A 1986-08-26 NOMOTO KOHEI; OMURO TAKASHI
PURPOSE:To enable the continuation of a tracking maintaining the accuracy, by receiving a forecast signals outputted from a tracking filter, an output of an incident angle calculator and an output of a device for determining the propriety of capture as input to arrange a subsequent observation judging device which outputs the error dispersion in the subsequent observation from a signal to a filter ring indicator, the subsequent observation time and the forecast angle. CONSTITUTION:A subsequent observation indicator 11 newly provided is made up of an antenna direction calculator 12, an incident angle calculator 13, an existence expected area calculator 14, a device 15 for determining the propriety of capture and a subsequent observation judging device 16. Then, the calculator 12 calculates the direction of an antenna in the future by a time lT and an incident angle at which one will see a target forecast in the future by the time lT, for which the output of a forecaster 7 adapted to forecast a likely state at the future time is obtained through a converter 9a. In addition, the size of the existence expected area is calculated 14, but as it is expanded gradually unless a new observation is done, thresholds are provided in three directions to determine 15 the propriety of capture. Then, the judging device 16 judges the time of the subsequent observation based on information to be inputted from equipments.
192 Center point tracking apparatus for satellites JP23203884 1984-11-02 JPS61110073A 1986-05-28 ITO TOMIO
PURPOSE:To enable the receiving of radio waves from satellites with one receiver, by providing a step track type tracking unit with a means which generate a synthetic pseudo pattern with the angle of the peak beam matching the center angle of the satellites to perform a step tracking offset based on the synthetic pseudo pattern. CONSTITUTION:Satellites SAT1-3 are tracked individually beforehand and the center angle of the satellites is calculated with a sample holder 2 and a step truck processor 5 to detect the satellite SAT2 the closest to the center angle. The angle as difference between the satellite SAT2 and the center direction C0 is inputted into a pseudo pattern generator 4 as offset angle DELTAtheta/2 to step track the position shifted by the offset angle from the satellite SAT2 thereby enabling the tracking of the center direction of the satellites. In this manner, a beam is received from the satellite closest the center of the satellites and synthesizes a pseudo pattern to provide a required offsetting in overlap therewith so that the enter of the satellites will be tracked. Thus, only one receiver is enough to receive radio waves from satellites.
193 Radar equipment JP20890384 1984-10-04 JPS6186671A 1986-05-02 JINRIKI MASANORI; AZEYANAGI TOSHIRO; CHOKAI YOSHIHIRO
PURPOSE:To enable the enhancement of tracking accuracy to multiple objects, by calculating the optimum distribution of the number of observation times corresponding to the indivisual tracking states of a large number of objects to be tracked. CONSTITUTION:The high frequency pulse signal generated from a transmitter 1 is emitted through a phase array antenna 10. At this time, a searching region 13 is covered with pencil beam 11 through a beam distributor 9 and random beam scanning by a beam pattern 15 is performed in order to optimize the observation interval to a registered object. Next, when the reflected signal from an object 14a is received by the antenna 10, said signal is inputted to a receiver 3 to receive detection and processed by a signal processor 4 and converted to the position and speed informations of the object to be inputted to an information processor 5. In the processor 5, estimation and forecast calculation is performed through a coincidence discriminator 6, a tracking filter 7 and an object file 8 and the result thereof is inputted to the distributor 9 through the file 8. By this method, the tracking accuracy to multiple objects can be enhanced.
194 Target tracking device JP20262184 1984-09-27 JPS6179178A 1986-04-22 YANAGISAWA MOTOI
PURPOSE:To continue a tracking operation smoothly by providing a means for calculating a predicted gate position after two scans, a clutter gate generator, and a clutter level detector and a corrector, and detecting and suppressing a clutter previously. CONSTITUTION:A target tracking device is provided additionally with a multiplier 11, adder 2, clutter gate generator 13, clutter level detector 14, and corrector 15. Then, the target predicted position and speed at the point of time of the (N)th scan are used when the (N-1)the (N: integer) scan is finished, and the predicted position at the time of the (N+1)th scan is calculated by the multiplier 11 and adder 12 and inputted to the clutter gate generator 13. Then, the clutter level detector 14 detects the level of the clutter, which is converted into the gain control voltage of an IF amplifier 1, and inputted to the corrector 15 and added to the AGC voltage at the end of the (N+1)th scan. Consequently, the input signal of a target pattern generating circuit 4 consists of only a target signal because the clutter is suppressed below a detectable level, so that tracking operation is carried on smoothly.
195 Target tracking system JP17630784 1984-08-24 JPS6154479A 1986-03-18 YAMAKAWA MORIYOSHI; YOSHIZAWA OSAMI; NAKAZATO EIKO; KOMURO HARUO
PURPOSE:To extend the detection and acquisition range of a target by a passive system and improve target tracking performance at a short range and an extremely short range by performing active tracking operation and passive tracking operation on time-division basis. CONSTITUTION:This system is equipped with an antenna 1, radio wave duplexer 2, transmitter 3, receiver 5 which receives and detects a receive signal on active bases, and receiver 6 which receives and detects a receive signal on passive basis. Further, a timing generator 13 generates a signal for switching both receivers and an active/passing switch 4 performs switching operation according to the indication; and an active/passive angle error detector 14 detects an angle error signal from outputs of the active receiver 5 and passive receiver 6 and a reception system switching decision device 15 judges whether switching to the passive reception system is effective or not. The reception system switching decision device 15 compares the level of a preset reference signal So with that of the detection signal Sp of the passive receiver and makes a decision to perform passive system tracking, for example, when So<=Sp.
196 JPS6030901B2 - JP16988379 1979-12-26 JPS6030901B2 1985-07-19 SAWADA MICHIHIRO; SUGIE KYOKAZU
197 Digital signal processing apparatus of tracking radar JP16782683 1983-09-12 JPS6058570A 1985-04-04 KIMURA YASUJI
PURPOSE:To attain to enhance a signal/noise ratio, by performing the fast Fourier conversion of a receiving signal and detecting a normalized short distance error and an angle error while separating a tracking object at every Doppler frequency. CONSTITUTION:Pin numbers (k), (n) are calculated by a tracking spectrum selecting part 19b and the magnitudes DELTAf, SIGMAf of spectra are calculated by absolute value circuits 5b, 5c while the magnitudes of spectra are totaled corresponding to the number of times of FFT by PDIs 6b, 6c and the angle error normalized by the division in a division part 21 is calculated. On the other hand, + or - polarities are discriminated by a code discriminating part 7 and an angle error with polarity is calculated by a coding part 8. In addition, because AZ (azimuth angle) and EL (high and low angles) are changed over in time shearing as a signal in a monopulse antenna part, the separation of AZ and EL signals is performed in an AZ and EL signal separating part 14. In addition, in order to generate the gain control voltage of a receiver, the output of an A/D converter 3 is supplied to a STC/AGC voltage generating part 16 and processed with combination of STC voltage from the STC generating part 17 and, thereafter, converted to analogue voltage by a D/A converter 10b.
198 Tracking radar JP14760483 1983-08-12 JPS6039579A 1985-03-01 KIKUTA MASUMI
PURPOSE:To attain tracking of a target even in case a Doppler frequency is extremely low, by operating a CW tracking radar as a pulse tracking radar, when the Doppler frequency goes to a predetermined frequency or less. CONSTITUTION:The output signal of a CW receiver 2 switched in accordance with the output of a Doppler detector 5 is applied to a Doppler detector 5, too, and when it goes to a predetermined Doppler frequency in advance, a switch 4 is operated. As a result, the CW receiver 2 is switched to a pulse receiver 3, a transmitting system also outputs a pulse, and a CW tracking radar is operated as a pulse tracking radar. The azimuth angle of a target and an elevation angle signal are outputted by a signal processor 6.
199 JPS605910B2 - JP416377 1977-01-18 JPS605910B2 1985-02-14 ARAI NOBUKATSU; SUZUKI TATSUYA; PPONMA KUNIHIKO; ODA SHINICHIRO
200 Target position estimating apparatus JP9520683 1983-05-30 JPS59220666A 1984-12-12 SASAKI TOSHIMASA
PURPOSE:To obtain stable estimating position accuracy, by investigating the presence or absence of acceleration in the motion of a target by adding an error smoothing filter, a discriminator, a change-over circuit, a timer and a secondary estimation filter to a primary estimation filter while changing over the primary and the secondary estimation filters each having an estimation formula on the basis of the investigation result. CONSTITUTION:Radar information is sent to an estimation apparatus Tr by a tracking radar R and the change value of one certain element therein is sent to a first primary estimation filter 1 to calculate the estimation value of each element. Thereafter, an error vector Fn is calculated and imparted to an error smoothing filter 2 to calculate a smoothed error vector En. When this vector En is sent to a discriminator 4, a time is measured by a timer 3 until a signal code changes with respect to each element of the smoothed error vector En and a control signal is sent so that the signal of a secondary estimation filter 6 is sent to a change-over circuit 7 if the measured result of the timer 3 about either one of elements exceeds a threshold value So and the signal of a second estimation filter 5 is sent to an estimating position calculator F is said measured result falls short of the measurement S1 of all elements of the smoothed error vector En.
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