Title :
Design and implementation of noise simulation circuit for a noncoherent spread-spectrum system IF signal simulator
Author :
Zhifeng, Song ; Wei, Cui ; Siliang, Wu
Author_Institution :
Sch. of Inf. Sci. & Technol., Beijing Inst. of Technol., Beijing
Abstract :
The noise simulation circuit of noncoherent spread-spectrum system intermediate frequency (IF) signal simulator is designed based on FPGA and DSP. This circuit generates white Gaussian noise (WGN), calculates coefficients of signal-to-noise ratio (SNR) refer to the specified SNR of each channel and according to these coefficients to generate spread-spectrum IF signal for transmitting to simulate the actual receive signal of responder beacon (RSP). It has been verified that the result of test meets the requests of system.
Keywords :
Gaussian noise; digital signal processing chips; field programmable gate arrays; integrated circuit design; noise generators; spread spectrum communication; white noise; DSP; FPGA; IF signal simulator; intermediate frequency; noise simulation circuit; noncoherent spread-spectrum system; signal-to-noise ratio; white Gaussian noise; Circuit noise; Circuit simulation; Digital signal processing; Field programmable gate arrays; Frequency; Gaussian noise; Signal design; Signal generators; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Signal Processing, 2008. ICSP 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2178-7
Electronic_ISBN :
978-1-4244-2179-4
DOI :
10.1109/ICOSP.2008.4697178
