Title :
Use of DSP and DDS technique in radar signal generator
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol., China
fDate :
31 Aug.-4 Sept. 2004
Abstract :
A radar signal generator with high frequency and high accuracy is developed in this paper. It adopts the TMS320F206 to control the direct digital synthesizer (DDS) by real-time frequency-tuning-word (FTW) calculation with the algorithm of taking the average of the lower 16 bits instead of the query mode. A phase locked loop (PLL) is added after the digital analog converter (DAC) and hence the high frequency and spurs reduction are obtained. A prototype is tested and the results show the utility of the above scheme.
Keywords :
convertors; digital signal processing chips; digital-analogue conversion; direct digital synthesis; phase locked loops; radar signal processing; DDS technique; DSP technique; digital analog converter; direct digital synthesizer; frequency-tuning-word; phase locked loop; radar signal generator; Analog-digital conversion; Digital control; Digital signal processing; Digital-to-frequency converters; Frequency conversion; Frequency synthesizers; Phase locked loops; Prototypes; Radar; Signal generators;
Conference_Titel :
Signal Processing, 2004. Proceedings. ICSP '04. 2004 7th International Conference on
Print_ISBN :
0-7803-8406-7
DOI :
10.1109/ICOSP.2004.1442153
