PULSE COMPRESSION APPARATUS USING A FIELD PROGRAMMABLE GATE ARRAY OF PULSED DOPPLER RADAR

摘要

PURPOSE: A pulse compression apparatus is provided to eliminate noise generated when forming a pulse compressor of an FPGA(field programmable gate array) mode.;CONSTITUTION: A pulse compressor(100) comprises an FFT(fast fourier transform) converting unit(120), a pulse compression unit(140), and an IFFT(inverse fast fourier transform) converting unit(150). The FFT converting unit fourier-transforms a compression estimating sampling signal among sampling signals of a radar receiving signal and outputs a sampling fourier conversion signal. The pulse compression unit creates a compression sampling signal which processing a reference signal to the sampling fourier conversion signal. The IFFT converting unit outputs a sampling inverse fourier conversion signal.;COPYRIGHT KIPO 2013;[Reference numerals] (100) Pulse compressor; (110) Sampling creating unit; (120) FFT converting unit; (130) Reference signal unit; (140) Pulse compression unit; (150) IFFT converting unit; (160) Memory; (170) Shift feedback control unit; (210) Data combination unit; (300) Waveform generating unit; (510) Sampling unit; (AA) Radar receiving signal; (BB) Sampling; (CC) Compression estimating sampling signal; (DD) Sampling fourier converting signal; (EE) Feedback of a signal after a noise section; (FF) Reference signal; (GG) Compression sampling signal; (HH) Sampling inverse fourier converting signal; (II) Signal output before the noise section(pulse compression signal)