Title :
Design and implementation of an ultra-wide band pulse compression signal generation system
Author :
Qiang, Si ; Yanzhong, Li ; Jingcheng, Xiang
Author_Institution :
Coll. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, China
Abstract :
The generation of ultra-wide-band pulse compression signals is a very important technology for microwave imaging, buried targets detection, and target identification. Direct digital waveform synthesis (DDWS) enables the waveform agility to be realized easily, and the signal bandwidth can be enlarged by additional orthogonal modulator and double frequency chain circuits. An ultra-wide-band pulse compression signal generation system is introduced, which generates LFM/NLFM signals with a 400 MHz bandwidth at 1200 MHz radio frequency. The test results show that spurious components and harmonics below -55 dB and -50 dB respectively
Keywords :
buried object detection; direct digital synthesis; frequency modulation; microwave generation; microwave imaging; pulse compression; radar resolution; radar signal processing; 1200 MHz; 400 MHz; LFM/NLFM signal; bandwidth; buried target detection; direct digital waveform synthesis; double frequency chain circuits; harmonics; high resolution radar; microwave imaging; orthogonal modulator; pulse compression; radar systems; radio frequency; signal bandwidth; spurious components; target identification; ultra-wide band signal generation system; waveform agility; Bandwidth; Microwave generation; Microwave imaging; Microwave technology; Pulse compression methods; Pulse generation; RF signals; Signal generators; Signal processing; Ultra wideband technology;
Conference_Titel :
Radar, 2001 CIE International Conference on, Proceedings
Conference_Location :
Beijing
Print_ISBN :
0-7803-7000-7
DOI :
10.1109/ICR.2001.984768
