Title :
A new processing flow of digital beam-forming for IF signal
Author :
Tao, Su ; Wang, Zhang ; Zhaoping, Wu
Author_Institution :
Nat. Lab. of Radar Signal Process., Xidian Univ., Xi´´an, China
Abstract :
The traditional processing flow of the digital beam-forming (DBF) for IF real signal is improved in this paper. The improved flow puts the low-pass filter and extraction in the digital down-converter (DDC) behind the weighting in DBF, which can reduce the computation load when the number of the sensors is much more than the number of the beams to be formed. The advantage of the new method is proved by the simulation.
Keywords :
array signal processing; intermediate-frequency amplifiers; low-pass filters; DBF; IF signal; computation load; digital beam-forming; digital down-converter; low-pass filter; processing flow; Computational modeling; Computer architecture; Digital filters; Filtering; Hardware; Low pass filters; Radio frequency; Sampling methods; Sensor arrays; Signal processing; Computation Load; DBF; Processing Flow;
Conference_Titel :
Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on
Conference_Location :
Xian, Shanxi
Print_ISBN :
978-1-4244-2731-4
Electronic_ISBN :
978-1-4244-2732-1
DOI :
10.1109/APSAR.2009.5374329
