| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Interferometric synthetic aperture radar altimeter | JP2000574956 | 1999-06-11 | JP2002526782A | 2002-08-20 | アール． ヘイガー，ジエイムズ |
| (57)【要約】 航空機位置決定方式は信号送信器（１０）と、航空機下方の地形から反射される送信信号を受信する２つの受信器（２２，２４）と、２つの受信器の入力で走査する位相比較装置（９６）を包有する。 プロセッサが位相比較装置の出力に基づいて位置を決定する。 | ||||||
| 122 | Horizontal miss distance filter system in order to suppress the error resolution warning | JP50841097 | 1996-03-15 | JPH10508110A | 1998-08-04 | ジョナサン ビー． ハマー |
| (57)【要約】 水平外れ距離フィルタシステム（２２０）は、パイロットのディスプレイ（２３０）へ航空交通警報及び衝突回避システム（２１０）からの分解能警報メッセージを抑止するために提供される。 該水平外れ距離フィルタは、非零水平外れ距離を有する侵入航空機（１１０）を識別するために用いられる距離加速度推定値（１１）を得るための放物線状距離追尾部（１０）を用いる。 該放物線状距離追尾部によって提供された距離データから計算された水平外れ距離は、方位に基づく追尾部（２２）によって提供された方位に基づく水平外れ距離と比較される。 ２つの計算された水平外れ距離の小さい方が、スレッショルド値と比較された発射水平外れ距離を規定する。 発射水平外れ距離がスレッショルドよりも大きい侵入航空機に対する分解能警報は、遭遇が航空機の１つのマヌーバを伴うことが決定されない限り抑止されることになる。 | ||||||
| 123 | JPH0479429B2 - | JP2017684 | 1984-02-07 | JPH0479429B2 | 1992-12-15 | IIJIMA NOBUYUKI |
| 124 | JPH0479428B2 - | JP2017584 | 1984-02-07 | JPH0479428B2 | 1992-12-15 | IIJIMA NOBUYUKI |
| 125 | Distance judging device | JP26362791 | 1991-10-11 | JPH04259873A | 1992-09-16 | MAIKERU AARU HENINGU; TOOMASU EMU UURUFUOOKU |
| PURPOSE: To judge the position and intrusion speed of an intruder into a protection range accurately by sampling and holding a lamp signal by a reflection signal being detected within the period of a specific gate signal. CONSTITUTION: A reflection pulse signal from, a target is supplied to a D-type flipflop(FF) 15 and at the same time a distance gate signal generator 13 supplies a distance segment in a protection range to the FF 15 as an enable signal. Then, a signal that is amplified along with a starting time at the start of the distance gate signal 13 is outputted from a lamp signal generator 17 to a sample/hold circuit 19, the FF 15 is controlled at the leading edge of a detection signal, and a signal that follows a lamp signal is outputted until a hold mode is selected by the reception signal from the FF 15. Since the amplitude of the output signal of the circuit 19 increases or decreases according to the move and direction of a target in the hold mode, the position and speed of the target within a distance segment can be judged by a processor 25. COPYRIGHT: (C)1992,JPO | ||||||
| 126 | JPS6330588B2 - | JP12847179 | 1979-10-06 | JPS6330588B2 | 1988-06-20 | HAYASHI YOSHIO |
| 127 | Radar distance tracking apparatus | JP2068785 | 1985-02-05 | JPS61178681A | 1986-08-11 | HAKODA YUSAKU |
| PURPOSE:To enable one tracking by performing distance tracking at a high speed and discriminating target separation, by comparing the output of a high sped distance counter with tracking gate position data set by a microcomputer to output a target distance in the form of a distance numerical value and a tracking gate form. CONSTITUTION:The output of a high speed distance counter 10 counting the clock of a clock generator 9 started by a transmission trigger is compared with the set tracking position gate of a microcomputer 27 by a distance comparator 1. When both of them coincide, a tracking gate pulse having a width including a target is outputted from a tracking gate generator 12 and converted to a high accuracy tracking gate width by a shift register 13 and a change-over circuit 14 for changing over a shift amount and a gate 20 is controlled by this width and the video signal passing through an A/D converter 25 is compared with a set threshold value by the microcomputer 27 while a video signal center value is detected by a lock-on detection circuit 24 to track a target distance at a high speed. In the similar way, two targets are separated by two sets of gate pulse widths and front and rear targets are selectively tracked corresponding to the indication of the microcomputer 27 through FF 18, a gate 22 and FF 19. | ||||||
| 128 | Single antenna frequency modulation radio altimeter | JP14382485 | 1985-06-29 | JPS6120876A | 1986-01-29 | MISHIERU RAZARIYU |
| 129 | JPS6183U - | JP6663485 | 1985-05-07 | JPS6183U | 1986-01-06 | |
| 130 | Distance tracking circuit | JP20044383 | 1983-10-26 | JPS6091280A | 1985-05-22 | SATOU HISASHI |
| PURPOSE:To remove the jamming of a radio wave, by providing a means for detecting a target by extracting a video signal by a delay distance gate signal and an AND circuit of the delay distance gate signal introduced into an intermediate frequency automatic gain control circuit and a distance gate signal. CONSTITUTION:A deceptive signal aiming to avoid the tracking of radar by the opponent is generated at the same position as a target signal and said position is successively shifted and the change in a speed different from the relative speed of a target and tracking radar is shown to eliminate the output of an AND circuit taking the logical product conjugation of a distance gate signal Gm and a delay distance gate signal Gn. In addition, the gain of an IF amplifier 6 is raised by an AGC disconnection signal 29 and the target signal is made large to appear in the gate signal Gn. Further, the target signal is detected by a target detecting circuit 26 and the signal Gm is altered to a target position to keep normal tracking. | ||||||
| 131 | Radar tracking apparatus | JP19971383 | 1983-10-25 | JPS6091279A | 1985-05-22 | YAMADA SHIGEHIRO |
| PURPOSE:To prevent disturbance, by detecting the unnecessary video signal in a video signal after setting said video signal to a definite level and detecting the distance difference with an objective video while transmitting the same to a tracking loop when it is judged that said distance difference exerts adverse influence upon tracking. CONSTITUTION:A video signal is suppressed to definite amplitide by a video level limiter 15 and an unnecessary video signal is detected by a second video gate part 16 and a video detecting part 19 while a second signal change-over circuit 20 is changed over. In addition, a signal proportional to the distance difference with an objective video is sent to an error signal detector circuit 18 and, when it is detected that the unnecessary video approaches a distance exerting adverse influence upon an objective video, a signal showing the presence of disturbance is sent to a change-over circuit 20 and an OR circuit 21 to operate a first signal change-over part 7. Further, a control signal applied to a distance gate control part 3 is changed over to the regeneration signal from a regeneration speed signal generating part 9 from the error signal from a distance error detecting part 6 and change-over is continued until disturbance is eliminated. | ||||||
| 132 | Discriminating system of pulse width | JP18030782 | 1982-10-14 | JPS5968686A | 1984-04-18 | NAKAJIMA MASANORI |
| PURPOSE:To prevent erroneous recognition and tracking, by deciding and discriminating outputs of three gate circuits, which are provided independently of a gate circuit for distance tracking, in a deciding circuit. CONSTITUTION:Pulses of a pulse generating circuit 4 are impressed to an antenna 1 and are transmitted, and a reflected signal is received by the antenna 1 and is inputted to a receiver 5. The signal of the receiver 5 is inputted to a distance tracking circuit 7 after being detected by a detector 6, and this signal inputted to three gate circuits A9, B10, and C11 also. The output signal of the circuit 7 is inputted to three sets circuits 9-11 through a gate pulse generating circuit 8, and the signal is allowed to pass through till a time corresponding to the gate pulse generated by the circuit 8. Outputs of circuits 9-11 are added in deciding circuits A12 and B13, and thereafter, the output from an OR circuit 14 to the circuit 7 is stopped when results are within a set threshold range. Thus, signals different in pulse width from a true signal are discriminated. | ||||||
| 133 | Distance tracking device by radar | JP19887181 | 1981-12-10 | JPS5899776A | 1983-06-14 | FURUKAWA TATSUUMI |
| PURPOSE:To make excellent the stability of a frequency and to improve the precision in distance, by using a clock of the same quartz oscillator as that of an input clock for a time counter. CONSTITUTION:An output of a transmission pretrigger generating circuit 2 is sent to a time counter 7, and a coincidence pulse is generated therein at the time when said output coinsides with the content A of a distance counter 9. This coincidence pulse output sets a flip-flop 15 and a flip-flop output is generated therefrom. This output gates the output of an oscillator 1 in a gate circuit 16, and the gated output turns to be a gated clock. This gated clock is delayed by a time corresponding to the content B by a delayed clock selection circuit 17 and is sent to a pulse generating circuit 12. Then, a distance gate is sent to a distance discriminator 13, and a value of a distance counter 9 is modified by this signal and a video signal from a receiver 6. | ||||||
| 134 | Marker capture circuit of tracking radar | JP8946580 | 1980-07-01 | JPS5714768A | 1982-01-26 | KIMURA YASUJI |
| PURPOSE:To make unnecessary the blanking operation while operating capture circuit and make possible to treat series connected type signal by obtaining the distance display error voltage directly from detected range bin number. CONSTITUTION:Set IFAGC circuit which operates only when marker is captured. To catch the distance of shift marker, output of 2-channel structure CCD canceler 41 of I and Q which provide range bin of more than tolerable display error to the delay line equipped with CCD tap and output of a delay line 43 is gated in a gate circuit 47 controlled by the coincidence detection judgement circuit which uses input and output signal of the delay line 43. Further, gate output is supplied to a faulty coherent integrator 48 consists of CCD delay lines and a break-out value circuit 49 which judges lock-on. A distance discriminator 52 which operates only while catching is constructed against the capture distance gate corresponding to the distance display error range. Then, shorten the capture time by using the output. | ||||||
| 135 | Signal-processing method for secondary monitoring radar | JP12847179 | 1979-10-06 | JPS5653475A | 1981-05-13 | HAYASHI YOSHIO |
| PURPOSE:To improve the target-detecting performance by a method wherein the selection of the detection base K/W of the sensitivity of a receiver within a tracking gate, the signal detection algorithm of a synchronization signal detection sircuit, etc. is separated from other areas and is controlled independently. CONSTITUTION:By feeding back a target estimating and tracking gate information from a tracking circuit to the STC circuit of the receiver, the synchronization signal detection circuit 17 and a sweep correlation operating circuit 18, control is performed so that the STC circuit of the receiver raises the sensitivity of the receiver only within the tracking gate, that the synchronization signal detection circuit 17 changes the detection algorithm to another algorithm and removes a nonsynchronization signal, picking up an effective signal in a low hit pattern and that the sweep correlation operating circuit 18 changes the detection base K/W to detect the target when a machine whereon the mode C is not yet mounted is estimated as the target. By such a constitution, a signal is detected adaptively only of the area getting into the tracking gate, whereby the disappearance of the effective signal is prevented and thus the target-detecting performance can be improved. | ||||||
| 136 | Signal detecting circuit | JP5660479 | 1979-05-09 | JPS55149071A | 1980-11-20 | MUROSAKA TATSUO |
| PURPOSE:To prevent the extension of lock-ON time by the false signal by keeping the gate ON until the lock-ON signal is generated in a laser semiative induction system or the like. CONSTITUTION:Receiving signal 1 is shaped in a comparator 2 and is supplied to a shift register 7 and lock-ON decision circuit 9 by way of a gate 3. The register 7 delays the signal 1 by one period and supplies the same to a register 8 and circuit 9. The circuit 9 outputs the decision signal by the AND of the registers 7 and 8. As a result of this, a switch 6 goes ON and the signal 1 is supplied to a gate signal generating circuit 4. The circuit 4 generates the gate signal with the signal 1 of the 3rd pulse as a reference to apply gate to the target position, thereby driving a register 5 and turning OFF the gate 3. | ||||||
| 137 | JPS5539792B1 - | JP5726072 | 1972-06-08 | JPS5539792B1 | 1980-10-14 | |
| 138 | Radar tracking signal inside insertion and outside insertion unit | JP3191678 | 1978-03-20 | JPS54124693A | 1979-09-27 | TACHIBANA YASUO |
| PURPOSE:To interpolate object distance signals in a signal breaking time by regarding the object speed within a fixed time as fixed and determining the simple equiation, which indicates the relation between the measrued value of the object distance shown by effective signals and the time, by the techique of minimum involution. CONSTITUTION:The radar reflection wave strength inputted from conductor 20 is converted to a binary signal in respect to a prescribed threshold by binary circuit 21, and this gignal is held for a requird time, and simultaneously, the measured value of object distance R which is measured by radar reflection is held in holding circuit 23. The output of this holding circuit and the output of the binary circuit are subjected to sampling alternately in the same period, and only sampling signals in case of the binary circuit output over the threshold are defined as effective signals. In respect to sampling signals in case of the output below the threshold, the measured value is regarded as changed linearly for the time, and signals are interpolated by determining a simple equation by the technique of minimum involution on a basis of the effective signals above. | ||||||
| 139 | Device for tracking radar signal | JP10172776 | 1976-08-27 | JPS5228895A | 1977-03-04 | KERII KIYARORU OBAAMAN |
| 140 | JPS50130387A - | JP2645675 | 1975-03-04 | JPS50130387A | 1975-10-15 | |
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