Aimed at the shortcomings that the SNR of wavelet-ridge applied to extracting the modulation features of FSK signals is worse,a novel joint time-frequency analytical method was proposed combining time-frequency reassignment with time-frequency ridge based on the wavelet spectrum.
针对小波脊线法在提取频率编码信号调制特征时信噪比性能较差的缺点,基于小波变换谱,将时频重排和时频脊线相结合,提出了一种新的时频联合分析方法。
Aiming at the shortage of wavelet transform in extracting in-pulse features from FSK signal,a united time-frequency analyse method combined with time-frequency reassignment and time-frequency ridge is introduced.
针对小波变换法在提取频率编码信号脉内特征中的不足,提出了将时频重排和时频脊线相结合的时频联合分析方法。
It is hard to improve the SNR of FSK signal by direct use of wavelet de-noising.
对频率编码信号直接进行小波去噪难以达到提高信噪比的目的,为了有效提高频率编码信号的信噪比,提出一种新的去噪方法。
Based on the theory and study of wavelet transform and frequency hop coded signals, a fast method for modulation recognition is proposed in this paper.
跳频编码信号是新型的脉压雷达信号类型,如何有效地对其截获和识别具有重要的现实意义。
Detection and Parameter Estimation of Frequency Coding Pulse Signal Based on SPWVD
基于SPWVD的频率编码脉冲信号的检测与参数估计
In pulse code modulation, a spurious signal formed from beats between the signal frequency and the sample frequency.
在脉冲编码调制中,信号频率和取样频率之间的差拍所引起的伪信号。
FPGA-based High-Voltage Inverter Pulse Signal Encoding Algorithm
基于FPGA的高压变频器脉冲信号编码技术的算法实现
Research of Coded Signal Pulse Compression and Stagger MTI
编码信号脉冲压缩和参差MTI的研究
A Blind Estimation Algorithm of the Frequency-Shaping Pulse of CPM-Signal
一种CPM信号频率成形脉冲盲估计算法
Research on the Technique of Very Low Bit Rate Video Compression Encoding;
基于甚低码率视频信号压缩编码技术研究
Polyphase Pulse Compression Codes Radar Signal Optimizing and Simulation;
多相编码脉冲压缩雷达信号的优化设计与仿真
Signal Design and System Development of Pulse-Coded Impact Seismic Source
脉冲编码可控震源信号设计与系统研究
Research on Side-lobe Suppression for Phase Encoding Signal
相位编码信号脉冲压缩旁瓣抑制技术研究
Tone or Pulse Dialing
设置音频或脉冲信号
Study on frequency measurement of radar coherent pulses
雷达信号相参脉冲串频率测量方法研究
Frequency sampling-based method to design UWB pulse shapes
基于频率采样的超宽带脉冲信号设计方法
Range sidelobe suppression of stepped Chirp waveforms
Chirp子脉冲频率步进信号的距离副瓣抑制
On Signal Processing Algorithms for Pulse & Inter-pulse Binary Phase Coded Radar Altimeter;
脉冲及脉间二相编码雷达高度表信号处理方法研究
An Embedded Speech and Audio Codec based on Factorial Pulse Coding
一种基于阶乘脉冲编码的嵌入式语音频编码器
Talking about the Digitalization of Video and Audio Signals and Source Encoding
视频及音频信号的数字化与信源编码
Characteristics of pulse code modulation for voice-frequencies
GB/T7610-1987音频脉冲编码调制特性
General test method for transmission performance of PCM voice channel in telecommunication network
GB/T7609-1995电信网中脉冲编码调制音频通路传输特性常用测试方法