Title :
Research of 2-bit quantization arithmetic in DS-SS receiver
Author :
Hongwei, Zhao ; Baowang, Lian ; Juan, Feng ; Jie, Lian
Author_Institution :
Coll. of Electron. Inf., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
In order to solve the problem that chips´ area and power is too large, input data are reduced the bit width generally in the development of ASIC of DS-SS system. This paper proposed a new method for 2-bit quantization and simulated its correlation capability for receiving pseudo-noise (PN) signals. This paper also verified the correctness and validity of this method through comparing its capability with that of 8 bit quantization. Now, the 2-bit quantization algorithm has been applied in the design of ASIC of ldquoBeidourdquo Navigation Test Satellite, and it has been proved the method is feasible in application.
Keywords :
application specific integrated circuits; correlation methods; quantisation (signal); radio receivers; spread spectrum communication; 2-bit quantization arithmetic; ASIC development; DS-SS receiver; Direct Sequence Spread Spectrum communications; correlation capability; pseudo-noise signals; spread spectrum communication; Application specific integrated circuits; Arithmetic; Autocorrelation; Frequency synchronization; Mobile communication; Quantization; RF signals; Radio frequency; Signal processing; Spread spectrum communication; 2-bit quantization; DS-SS; correlation; receiver; signal capture;
Conference_Titel :
Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-2799-4
Electronic_ISBN :
978-1-4244-2800-7
DOI :
10.1109/ICIEA.2009.5138653
