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) optimised 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 parallelisation
Keywords :
FM radar; digital-analogue conversion; direct digital synthesis; function generators; phase locked loops; radar transmitters; table lookup; 77 GHz; DAC; FMCW; digital-analog converter; direct digital synthesizer; frequency modulated continuous wave radar; lookup table; parallelised noise shaping DDS; phase locked loop; radar transmitter; sine function; 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 :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281024
