Title :
High Performance Waveform Generator Design for Full-Coherent Millimeter-Wave Radar
Author :
Cai, Jingye ; Yang, Yishi ; Yang, Yuanwang ; Liu, Lianfu ; Zhu, Xueyong
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
Millimeter-wave radar has attracted much attention as a replacement of some infrared or laser systems currently in use. In this paper, an approach of developing high performance waveform for full-coherent millimeter-wave radar is proposed. With good frequency configuration and optimal utilization of DDS (direct digital synthesizer), PLL (phase locked loop) and FPGA (field programming gate array), the developed radar waveform generator implemented with low complexity has the good performance of both spectrum purity (phase noise and spur level) and switching speed. The measurement results show that, in S/C band, the local oscillator´s bandwidth is 480MHz and the minimum frequency step is 15MHz, the spur level is better than -65dBc, the phase noise level is better than -94dBc/Hz@1kHz, the maximum frequency switching time is less than 15mus.
Keywords :
direct digital synthesis; field programmable gate arrays; millimetre waves; phase locked loops; phase noise; radar; FPGA; PLL; direct digital synthesizer; field programming gate array; frequency 480 MHz; frequency switching; full-coherent millimeter-wave radar; laser systems; phase locked loop; phase noise; radar waveform generator design; spectrum purity; Field programmable gate arrays; Frequency measurement; Frequency synthesizers; Laser radar; Millimeter wave radar; Noise measurement; Phase locked loops; Phase noise; Phased arrays; Signal generators;
Conference_Titel :
Signal Design and Its Applications in Communications, 2007. IWSDA 2007. 3rd International Workshop on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-1074-3
Electronic_ISBN :
978-1-4244-1074-3
DOI :
10.1109/IWSDA.2007.4408402
