摘要
由于传统系统去除信号噪点的效果不好,导致短波发射信号处理时间延长,因此设计基于DSP的短波发射信号处理系统。在硬件设计上,设计信号滤波电路和数据转换电路,前者用来过滤噪声信号。在软件设计上,基于DSP构建发射信号调试模型,在加权叠加算法下预估短波信号发射前的功率谱,设计检测流程处理短波发射信号,完成短波发射信号系统设计。实验测试表明,与其他两组传统方法设计下的处理系统相比,只有新系统能够在不改变信号波形的前提下去除噪点,处理时间分别比传统系统缩短了11.98 s和13.01 s,能够提高短波发射信号处理效率。
Because the traditional system is not effective in removing signal noise,which results in the prolonged shortwave transmission signal processing time,a shortwave transmission signal processing system based on DSP is designed.In the hardware design,the signal filtering circuit and the data conversion circuit are designed.The former is used to filter the noise signal.In terms of software design,a debug model of the transmission signal is constructed based on DSP,the power spectrum of the shortwave signal before transmission is estimated under the cross-weighting algorithm,the detection process is designed to process the shortwave transmission signal,and the shortwave transmission signal system design is completed.Experimental tests show that,compared with the other two groups of processing systems designed by traditional methods,only the new system can remove noise without changing the signal waveform.The processing time is reduced by 11.98 s and 13.01 s compared with the traditional system,which can improve shortwave,transmission signal processing efficiency.
作者
黄宝健
HUANG Baojian(State Administration of Radio and Television,Kashi 844000,China)
出处
《通信电源技术》
2021年第8期47-50,共4页
Telecom Power Technology
关键词
短波信号
噪声信号
信号功率谱
shortwave signal
noise signal
signal power spectrum
