摘要
针对信号采样和采样值的量化在FPGA设计中的重要性,不仅从理论上分析了信号采样频率和采样值量化电平数对通信系统的影响,而且以升余弦信号为例,通过MATLAB仿真技术,分别对不同采样速率、不同量化电平数的升余弦信号频谱波形进行了仿真,形象直观地验证了理论分析结果,并结合FPGA资源开销情况,给出了工程上合理的设计参数。
Considering the importance of signal sampling and quantizafion in the design of FPGA, the paper first analyzes the influence of sampling frequency and quantization level number to communication system theoretically. Then, taking raised cosine signal as an example, the spectrum waveform of raised cosine signal is simulated with different sampling rate and different quantization level number using MATLAB. At last, according to the result of MATLAB simulation and the resource of FPGA, reasonable engineering design parameters are presented.
出处
《无线电通信技术》
2008年第4期19-21,共3页
Radio Communications Technology
关键词
采样
量化
数字信号
FPGA
sampling
quantization
digital signal
FPGA
