US 12,123,969 B2
Generator of a frequency modulated radar signal
Mykhailo Zarudniev, Grenoble (FR); Etienne Antide, Grenoble (FR); Cédric Dehos, Grenoble (FR); José-Luis Gonzalez Jimenez, Grenoble (FR); Clément Jany, Grenoble (FR); and Alexandre Siligaris, Grenoble (FR)
Assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
Filed by COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
Filed on Aug. 19, 2021, as Appl. No. 17/406,265.
Claims priority of application No. 20 08588 (FR), filed on Aug. 20, 2020.
Prior Publication US 2022/0057479 A1, Feb. 24, 2022
Int. Cl. G01S 7/35 (2006.01); G01S 13/34 (2006.01)
CPC G01S 7/35 (2013.01) [G01S 13/343 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A generator of a frequency modulated radar signal, comprising:
a first device configured to generate a frequency modulated periodic signal over at least one part Tramp of a period T, corresponding, over said at least one part Tramp of the period T, to a square signal of which the frequency varies linearly in a first frequency band Bin of central frequency fin and of which an amplitude alternates between a first value and a second value different from the first value; and
an oscillator comprising an electrical supply input coupled to a second device configured to be controlled by the frequency modulated periodic signal and generating a non-zero voltage for supplying the oscillator only when the amplitude of the frequency modulated periodic signal is equal to the first value or only when the amplitude of the frequency modulated periodic signal is equal to the second value, wherein the oscillator is configured to, when the oscillator electrical supply input receives the non-zero voltage, generate a sinusoidal signal of frequency fc>fin and comprised in a second frequency band Bamp>Bin, the second frequency band Bamp corresponding to the linear variation of the frequency of the frequency modulated radar signal intended to be generated.