Realization of MSK modulated signals' digital demodulation.
MSK调制信号的数字化解调的实现。
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。
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。
On the basis of the features of the Fast Fourier Transform (FFT) and digitally modulated signals, this paper proposes a blind channel estimation algorithm.
根据快速傅里叶变换(FFT)和数字信号调制解调的特点，给出了一种盲信道质量估计算法。
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。
Three features parameters derived from the instantaneous amplitude, instantaneous phase, instantaneous frequency and power spectrum of analogue modulated signals are presented in this article.
首先介绍从信号幅度、相位、频率及功率谱等特性中提取的三种特征参数，应用这三种参数采用人工神经网络对模拟调制信号进行了识别。
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。
When laser light is bounced off the fibre, the reflected light is modulated in accordance with the electrical signals.
当激光从纤维上弹回后，反射的光会随着电子信号的改变而改变。
The transmitted signals which were modulated is a group of orthogonal sine signals as subcarrier and non-regular zero square waves that the code elements period is t as baseband coded formats.
它所发送的信号是由一组正交的正弦信号作为副载波，用码元周期为T的不归零方波作为基带码型调制而成的。
The invention can alternatively be embodied in a frequency modulated radar system, for which each set of signals comprises a sequence of modulation patterns.
本发明可替代地具体实施为频率调制雷达系统，其每组信号包括调制图案的序列。
Signals with sinusoid modulated phase is the general form of micro-Doppler signals in radar echoes from targets with micro-motions.
正弦调制相位信号是微动目标雷达回波微多普勒信号的一般形式。
Giving concrete digital-modulated form, the mean power spectrum density of the signals discussed can be obtained in this way. The calculation can be done on computers.
给定具体的数字调角形式，用这种方法可在计算机上计算所给信号的平均功率谱密度。
This paper considers the problem of blind symbol rate estimation of signals linearly modulated by a sequence of unknown symbols.
本文认为线性调制的信号由一个序列的未知符号盲符号率估计的问题。
This paper puts forward the signals transmission method combining the MSK technique with the radio technique of frequency modulated ultra short waves.
文章提出了采用最小频移键控(M SK)技术与调频超短波无线电技术相结合传输信号的方法。
The in-pulse feature analysis is made on the signals with single-frequency, and those signals respectively being linearly frequency-modulated, phase coded. The simulation results are given.
对单频信号、线性调频信号、二相编码信号、四相编码信号进行了脉内特征分析，给出了仿真结果。
This paper analyzes a kind of chaotic modulation signals, the phase-modulated radar signals are generated by chaotic signals, at the same time the ambiguity function of the coded signals is given.
本文研究了一类混沌编码信号，利用混沌信号进行雷达信号的相位编码，并且计算了这类编码信号的模糊函数。
This paper considers the problem of blind symbol rate estimation of signals linearly modulated by a sequence of unknown symbols.
本文阐述了未知符号序列经线性调制后，在接收端利用循环相关理论对符号速率进行盲估计的问题。
A method of designing linear frequency modulated (LFM) signals with wide bandwidth and an experimental system that can generate many complex waveforms are presented.
文中不仅给出了宽带线性调频(LFM)信号的具体设计方法，而且给出了可产生多种复杂波形的实验信号产生系统及其主要技术指标。
A method of designing linear frequency modulated (LFM) signals with wide bandwidth and an experimental system that can generate many complex waveforms are presented.
文中不仅给出了宽带线性调频(LFM)信号的具体设计方法，而且给出了可产生多种复杂波形的实验信号产生系统及其主要技术指标。
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