摘要
提出一种基于FPGA和DDS技术的扩频调相信号发生器的设计方案,用以模拟产生中频扩频调相信号,并模拟无线通信信道特性,包括噪声特性、多普勒效应及功率特性。该信号发生器具有设计灵活、仿真度高的特点,可作为一种通用扩频信号源使用。!
This article introduces a design of a spread spectrum ＆ phase-modulated signal simulator based on FPGA and DDS technique. It＇s designed to generate spread spectrum phase-modulated signals at medium frequency, and simulate the characteristics of wireless communication channel, including noise, Doppler frequency--shift and the power characteristic. It＇s smart and close to the reality, which can be used as a general spread spectrum signal source.
出处
《军民两用技术与产品》
2006年第10期46-47,共2页
Dual Use Technologies & Products
关键词
扩频
FPGA
DDS
信道模拟
Spread spectrum, FPGA, DDS, Communication channel simulation
