Modulation domain provides insight to complex modulated signals and opens a new field of measurement technology.
调制域为人们打开了分析复杂调制信号的新视角，开辟了测量技术的新天地。
Realization of MSK modulated signals' digital demodulation.
MSK调制信号的数字化解调的实现。
An MC algorithm for digital modulated signals is proposed, with a wide recognition range and a high classification probability.
提出了完整的数字通信信号的调制方式识别算法，该算法具有识别类型多，正确识别率高的特点。
These characteristics of spectral correlation can be used to classify modulated signals, even when the signals are buried in noise.
利用谱相关函数的这些性质可以识别出噪声中的调制信号。
Studied the modulation identification problem of digital modulated signals, successfully identified 2ask, 2fsk, 2psk, 4ask and 4fsk signals.
深入研究了数字调制信号的调制制式的识别问题，成功识别了2ask、2fsk、2psk、4ask和4fsk五种数字调制信号。
The utility model relates to a radio transmitter for low-resistance sound signal, which is used to convert audio signals into frequency modulated signals.
本实用新型是一种将音频信号转换成调频信号的发射装置。
This dissertation performed the following work based on the research before: (1) We studied the modulation identification problem of analogue modulated signals.
本文在前人的研究基础上主要做了如下工作：(1)研究了模拟调制信号的识别方法。
Different types of digitally modulated signals that have similar, if not identical, power spectral density functions can have highly distinct spectral correlation functions.
一些不同的数字调制信号有着相同或相近的功率谱密度，但它们的谱相关函数却有明显区别。
Frequency of modulated signals is extracted from frequency-modulated signals by using the relationship between the modulus of wavelet transform coefficient and the singular exponent.
利用小波变换系数的模值与信号奇异性指数之间的关系，从调频信号中提取出调制信号的频率。
A simple digital demodulation method is proposed for the DPSK-PM modulated signals, which are commonly used in the satellite USB (Unified S-band) tracking telemetry and command system.
针对卫星usb测控系统中常用的DPSK - PM调制技术，设计了一种简单的数字解调方法。
In this research, based on statistical pattern recognition method, we use constellation of modulated signals to classify modulation modes both in non-cooperative and cooperative communications.
本文采用基于统计模式识别的方法，研究了非合作通信与合作通信中通过提取调制信号的星座图特征对调制模式进行识别的问题。
Finally the simulation results show that the nonlinear performance and compatibility of MSK modulated navigation signals are better than QPSK modulated signals, ensuring the code tracking performance.
仿真结果表明，在保证信号跟踪性能的前提下，卫星导航信号采用MSK调制时的非线性和兼容性优于同参数下的QPSK调制。
Finally the simulation results show that the nonlinear performance and compatibility of MSK modulated navigation signals are better than QPSK modulated signals, ensuring the code tracking performance.
仿真结果表明，在保证信号跟踪性能的前提下，卫星导航信号采用MSK调制时的非线性和兼容性优于同参数下的QPSK调制。
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