Title :
A 77-GHz Radar Transmitter with Parallelised Noise Shaping DDS
Author :
Wagner, Christoph ; Stelzer, Andreas ; Jager, Herbert
Author_Institution :
Johannes Kepler Univ., Linz
Abstract :
A 77-GHz synthesizer consisting of a phase locked loop (PLL) and a direct digital synthesizer (DDS) optimized for the application in frequency modulated continuous wave (FMCW) radars is presented. Through extensive noise shaping, the DDS uses a very small lookup table for storage of the sine function values and requires a digital-analog converter (DAC) with only 6 bit resolution. The design achieves high clock rates via the use of parallelization
Keywords :
CW radar; FM radar; digital-analogue conversion; direct digital synthesis; phase locked loops; radar transmitters; table lookup; 77 GHz; DAC; DDS; FMCW; PLL; digital-analog converter; direct digital synthesizer; frequency modulated continuous wave radar; lookup table; parallelized noise shaping; phase locked loop; Continuous phase modulation; Digital modulation; Digital-analog conversion; Frequency modulation; Frequency synthesizers; Noise shaping; Phase locked loops; Radar applications; Table lookup; Transmitters; DDS; PLL; Radar transmitters;
Conference_Titel :
Radar Conference, 2006. EuRAD 2006. 3rd European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-7-9
DOI :
10.1109/EURAD.2006.280343
