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针对目前我国在轨运行的北斗卫星导航信号采用正交相移键控调制方式,而二进制偏移载波调制/解调技术尚未被成熟掌握的情况,提出了BOC(10,5)信号发生器的硬件设计方案。系统设计中,采用了层次化的、基于VHDL语言的设计流程。首先介绍了BOC调制技术的原理,分析研究了基于Xilinx ISE14.4软件和Zynq-7000 FPGA器件的软件无线电的BOC调制信号发生器的实现方法,并在由上海德致伦电子科技有限公司提供的ZYBO(ZYNQ XC7Z010-1CLG400C,Zynq Board)开发平台上进行了调试和验证,对北斗接收机的研发具有一定的指导价值。
Aiming at the situation that the Beidou satellite navigation signal currently operating in orbit adopts quadrature phase shift keying modulation, and the binary offset carrier modulation / demodulation technology has not yet been mastered, a BOC (10,5) signal generator Hardware design. System design, using a hierarchical design process based on VHDL language. Firstly, the principle of BOC modulation technology is introduced. The realization method of BOC modulation signal generator of software radio based on Xilinx ISE14.4 software and Zynq-7000 FPGA device is analyzed. At the same time, ZYBO (ZYNQ XC7Z010-1CLG400C, Zynq Board) development platform for debugging and verification, the Beidou receiver R & D has some guidance.