公开(公告)号：US3927405A

公开(公告)日：1975-12-16

申请号：US36144373

申请日：1973-05-17

Applicant: THOMSON CSF

Inventor： POINSARD HENRI ,  LEMOING JEAN

IPC: G01S13/90 ,  G01S9/02

CPC classification number: G01S13/9011

Abstract: The present invention relates to a system for processing the signal received by a sideways looking airborne radar system. The received signals are compared with a sawtooth frequency modulated reference signal, the slope and the repetition period of which is a function of the velocity of the aircraft. The compared signals are passed through a digital integrator, the integration time of which is equal to the repetition period of the sawtooth. Control means, receiving the velocity of the aircraft controls the slope and the repetition period of the sawtooth and the integration time.

Abstract translation: 本发明涉及一种用于处理由侧视机载雷达系统接收的信号的系统。 将接收到的信号与锯齿波调制参考信号进行比较，其斜率和重复周期是飞机速度的函数。 比较的信号通过数字积分器，其积分时间等于锯齿波的重复周期。 控制装置，接收飞机的速度控制锯齿的斜率和重复周期以及积分时间。

公开(公告)号：US3680102A

公开(公告)日：1972-07-25

申请号：US3680102D

申请日：1970-02-12

Applicant: THOMSON CSF

Inventor： POINSARD HENRI

IPC: G01S13/44 ,  G01S9/22 ,  G01S9/52

CPC classification number: G01S13/4445

Abstract: In a receiver of an angular measurement system of the type in which an angular indication is given by the ratio of two simultaneously received signals A and B, the useful signal is obtained through alternately phase detecting signals A + jB and A - jB with either signal A or alternately signals A - jB and A + jB, and alternately inverting the sign of the phase detection signal thus obtained. Distortions due to amplification are thus avoided.

Abstract translation: 在通过两个同时接收的信号A和B的比率给出角度指示的角度测量系统的接收机中，通过交替相位检测信号A + jB和A-jB获得有用信号，其中任一信号 A或交替地信号A-jB和A + jB，并且交替地反转由此获得的相位检测信号的符号。 因此避免了由于扩增引起的变形。

公开(公告)号：US3651412A

公开(公告)日：1972-03-21

申请号：US3651412D

申请日：1970-04-22

Applicant: THOMSON CSF

Inventor： POINSARD HENRI ,  JULLIEN MARIE-JACQUES

IPC: G01S7/292 ,  H03K9/04 ,  H04B1/10

CPC classification number: G01S7/2923

Abstract: In receivers of pulsed signals of a predetermined duration Tau , the useful signal is elaborated as a trigonometric function of the phase angle phi between the sum signal Sigma and difference signal of two samples, A, and B, of a received pulse at respective instants differing by t, t being smaller than Tau .

Abstract translation: 在具有预定持续时间τ的脉冲信号的接收机中，有用信号被详细描述为和信号SIGMA之间的相位角phi和相应时刻不同的接收脉冲的两个采样A和B的差分信号之间的三角函数 由t，t小于tau。

公开(公告)号：FR2729764A1

公开(公告)日：1996-07-26

申请号：FR8612938

申请日：1986-09-16

Applicant: THOMSON CSF ,  THOMSON CSF

Inventor： POINSARD HENRI ,  POINSARD HENRI

IPC: G01S7/36 ,  F41G7/22 ,  G01S13/42 ,  G01S13/536 ,  G01S13/72 ,  G01S13/53

Abstract: Ce radar à champ angulaire instantané important et haut pouvoir instantané de résolution angulaire, notamment pour autodirecteur de missile, comporte essentiellement: - une antenne d'émission de diagramme relativement large, émettant une onde quasi-continue; - une antenne de réception dotée d'une pluralité d'éléments rayonnants; - des moyens de formation de faisceaux associés à l'antenne de réception, pour réaliser une combinaison linéaire des signaux issus des différents éléments rayonnants de l'antenne de réception, afin d'obtenir un ensemble de faisceaux de réception simultanés permettant l'exploration instantanée de l'espace couvert par le faisceau d'émission. Application notamment aux autodirecteurs de missiles.

公开(公告)号：FR2625326B1

公开(公告)日：1990-08-03

申请号：FR8407759

申请日：1984-05-18

Applicant: THOMSON CSF

Inventor： POINSARD HENRI ,  VILLELEGER CHARLES

IPC: G01S13/524 ,  G01S7/44 ,  G01S13/52

公开(公告)号：IT8767170D0

公开(公告)日：1987-03-10

申请号：IT6717087

申请日：1987-03-10

Applicant: THOMSON CSF

Inventor： POINSARD HENRI

公开(公告)号：DE2835932A1

公开(公告)日：1979-02-22

申请号：DE2835932

申请日：1978-08-17

Applicant: THOMSON CSF

Inventor： POINSARD HENRI

IPC: G01S13/90 ,  H01Q1/28 ,  G01S9/02

公开(公告)号：DE2020775C3

公开(公告)日：1974-06-06

申请号：DE2020775

申请日：1970-04-28

Applicant: THOMSON CSF

Inventor： POINSARD HENRI ,  JACQUES JULLIEN MARIE

IPC: G01S7/292 ,  H04B1/10 ,  G01S7/30

Abstract: In receivers of pulsed signals of a predetermined duration tau , the useful signal is elaborated as a trigonometric function of the phase angle phi between the sum signal SIGMA and difference signal of two samples, A, and B, of a received pulse at respective instants differing by t, t being smaller than tau .

公开(公告)号：DE1951416A1

公开(公告)日：1970-04-23

申请号：DE1951416

申请日：1969-10-11

Applicant: THOMSON CSF

Inventor： PARQUIER GUY LE ,  POINSARD HENRI ,  INLLIEN MARIE-JACQUES

IPC: G01S13/44 ,  G01S13/52 ,  G01S9/42

Abstract: 1,262,386. Moriopulse radar. THOMSON CSF. 9 Oct., 1969 [15 Oct., 1968], No. 49719/69. Heading H4D. A monopulse radar receiver comprises an MTI system fed from a phase detector having a reference input from a wave generator and a sum echo signal input wherein the sum signal is phase modified by an amount proportional to the angular displacement of the target and the radar boresight. In an airborne MTI this reduces the clutter bandwidth enabling a clutter rejection filter of smaller bandwidth to be used, thus lessening the adverse effects of the filter on target returns when a low repetition frequency is used to give a large unambiguous range. The phase is modified to make the phase between successive echoes of a target equal to that between successive echoes of a target situated on the boresight. This difference in phase is: #V c sin G cos S dGdt, for an aircraft in substantially level flight where V c is the aircraft velocity; S, G are the elevation and azimuth bearings of the boresight; dG is the azimuth angular displacement of the target from the boresight. In one embodiment, Fig. 3, the phase modification is introduced directly into the sum channel by a varactor-type variable phase shifter P which produces a phase shift corresponding to the product of JV c sin G cos Sdt and dG which is derived from a Hall effect multiplier M 2 , the integral being taken over four successive transmitter pulses and being reset by pulses from a divide-byfour clock H. dG is produced by phase comparison of #+f# and #-f#, where # and # are the sum and difference signals. The modified sum signal passes to an arrangement comprising a phase detector D 2 having an echo input carrying the modified sum signal and a reference input connected to a wave generator CO, synchronized by the sum signal delayed by a pulse length. The output of the phase detector passes to a conventional anti-clutter device AC comprising cascade connected delay lines before passing to the MTI display through a switch controlled by clock H. In a second embodiment (Fig. 4, not shown) the final MTI arrangement is identical but the phase modification is produced in an adder having two inputs, one being the sum signal delayed by #/2 and the other being the output of a multiplier having inputs #V c sin G cos S dt, derived as before and the difference signal.

公开(公告)号：DE3731036A1

公开(公告)日：1996-09-05

申请号：DE3731036

申请日：1987-09-16

Applicant: THOMSON CSF

Inventor： POINSARD HENRI

IPC: F41G7/22 ,  G01S7/36 ,  G01S13/42 ,  G01S13/536 ,  G01S13/72 ,  G01S13/66 ,  G05D1/12 ,  H01Q3/26

Abstract: The radar includes essentially: - a transmitting antenna with a relatively wide radiation pattern, transmitting a quasi-continuous wave; - a receiving antenna including a plurality of radiating elements; - means for formation of beams associated with said receiving antenna, to achieve a linear combination of the signals from the various radiating elements of said receiving antenna, in order to obtain a group of simultaneous reception beams allowing the instantaneous scanning of the airspace covered by said transmitting antenna. Each module ((1,1) - (p,q) Fig 16) of the array has associated circuitry (Fig 8), providing signals for beam forming and digital Fourier transform processing, (Figs 10, 11, 15). The local oscillator signal is provided as back radiation from antenna LO illuminating the receiver antenna. The transmitted quasi-continuous wave is a sequence of continuous waveforms, of equal or changing frequencies (Fig 6).