1
Jean L Lassallette, Guy Lepere, Gerard Rotat: Device for processing logarithmic signals, and its application to a frequency diversity radar. Thomson-CSF, Cushman Darby & Cushman, July 23, 1985: US04531124 (9 worldwide citation)

The device for processing logarithmic signals is intended to deliver the logarithm of the sum of the signals which are given under the logarithm sign. The digital processing device receives at least two logarithmic signals and comprises a subtracting circuit for forming the difference between the lo ...


2
Guy Lepere, Jacques Kunegel, Jean Pol Coulmier: Device for moving-clutter elimination in a radar. Thomson-CSF, Cushman Darby & Cushman, October 23, 1990: US04965585 (8 worldwide citation)

The invention resides in the fact that the moving-clutter elimination filter is composed of several transversal filters whose n+1 multiplying coefficients K0, K1, . . . , K.alpha., . . . , Kn are fixed and are derived from the coefficients A0, A1, . . . , A.alpha., . . . , An of the fixed-clutter el ...


3
Guy Lepere: Receiver with fixed-echo suppressor. Thomson-CSF, Karl F Ross, November 11, 1980: US04233604 (8 worldwide citation)

A receiver of a pulse-type radar has a main i-f channel feeding a fixed-echo suppressor of limited dynamic range and, in parallel therewith, an ancillary channel of extended dynamic range including a logarithmic amplifier and a processor. The latter averages the amplitude of incoming echo signals ov ...


4
Guy Lepere, Rolland Younes, Cristobal M Ramirez: Receiver for a pulsed Doppler radar system. Thomson-CSF, Cushman Darby & Cushman, January 6, 1987: US04635061 (5 worldwide citation)

A receiver for a pulsed Doppler radar system comprising, connected in series, the following elements: an IF amplifier whose band width is equal to n times the spectral width of the transmitted pulses, a coherent IF detector, an A/D coder which operates at a sampling frequency at least equal to the p ...


5
Guy Lepere, Didier Duval: Device for the automatic testing of digital filters in moving-target indicators. Thomson-CSF, Karl F Ross, December 8, 1981: US04305076 (4 worldwide citation)

One or more digital filters in the output of an echo detector in a radar or sonar system are periodically checked for correct operation by the application of a test signal to their input and the comparison of a resulting output signal with a predetermined response code stored in a read-only memory. ...


6