Performance Analysis and Implementation of a Noncoherent Dual M-ary Orthogonal Code Spread-Spectrum System
Jinglan Ou, Xiaoming Liu, Haowei Wu, Dong Xiong · Journal of Chongqing University. English Edition · 2005
In order to transmit high rate data and improve the spectrum efficiency,a new noncoherent Dual M-ary(orthogonal) code Spread-spectrum system scheme is proposed based on the conventional M-ary orthogonal code Spread-spectrum.First,the system architecture is presented.Second,the performance of the system in AWGN channel is analyzed and the simulation result is provided.Finally,the implementation technique of the system based on FPGA is discussed.With the same bit rate and same chip rate,theoretical analysis and practical results indicate that the performance of the Dual M-ary orthogonal code Spread-spectrum system is superior to the M-ary orthogonal Spread-spectrum,and it can resolve the conflict between the bandwidth and the gain more effectively.