摘要
针对现代数字通信系统中广泛使用的宽带数字调制,分析了其矢量合成原理,并采用统一的FPGA硬件平台、算法软件实现、IF/RF矢量调制器来实现。文中给出了实现电路原理,对实际的幅度与相位不平衡给出补偿解决办法。最后给出了多进制相移键控(MPSK)调制器测试数据,其性能优良,可以满足多频段扩跳频数据传输要求。
This paper analyzed vector composing theory of the wideband digital modulation technology widely used in modern digital communication system. And the wideband digital modulator is implemented based on FPGA, algorithm software , IF/RF vector modulator. The circuit principle is presented and the compensation method of imbalance of amplitude and phase is discussed. The test data of MPSK modulator is given. The performance of modulator is good and meets the requirement of multiband spread spectrum/hop frequency data transmission.
出处
《无线通信技术》
2007年第2期49-52,共4页
Wireless Communication Technology
