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GMSK信号进行了仿真研究,GPRS采用与GSM 相同的频段、频带宽度、突发结构、无线调制标准、跳频规则以及相同的TDMA帧结构。因此，在GSM系统的基础上构建GPRS系统时，GSM系统中的绝大部分部件都不需要作硬件改动，只需作软件升级-GMSK signal simulation, GPRS and GSM using the same frequency and bandwidth, unexpected structure, the wireless standard modulation
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利用MATLAB实现了跳频信号的调制和解调，给出了频谱图。,The use of MATLAB implementation of the frequency hopping signal modulation and demodulation, give the frequency spectrum.
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理解通信系统特别是无线通信系统对基带信号的处理方法及目的，包括基带系统的差错控制，扩频跳频原理，保密通信等基本原理和实现方法。
-Understanding of communication systems, especially wireless communications system to the base-band signal processing methods and purposes, including base-band system for error control
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CDMA 的仿真程序，Frequency Hopping Spread Spectrum,Random frequency hopps to form a spread signal-CDMA s simulation program, Frequency Hopping Spread Spectrum, Random frequency hopps to form a spread signal
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本文介绍了跳频扩频通信系统的原理。应用matlab语言防真和分析了一个1个频点的跳频通信系统的扩频通信过程；仿真和分析了2个跳频信号跳频点的变化。-In this paper, frequency-hopping spread-spectrum communication system principle. Matlab language applications and analysis of anti-truth, a point of a frequency hopping spread
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This m-file plots the transmitted signal of slow frequency hopped spread spectrum.This uses one symbol transmission per frequency hop.
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在本系统中，信息序列在先经过FSK调制，经过截止频率为25kHz的低通滤波器后（把信号频率限制在25kHz），再进入混频器搬移到更高的频率发送出去，在接收端，用与发送端同步的跳频信号对其进行变频（跳频的解跳处理在此进行），取下边频，然后进行FSK的解调-In this system, the message sequence prior through FSK modulation, through the cut-off frequency of 25kHz after low-pass fi
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此程序仿真了调频通信系统的调制，跳频调制，解跳和解调 给出了各个信号的频谱-This program simulates the frequency modulation communication systems, frequency hopping modulation, demodulation solution given jump and the spectrum of each signal
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常用跳频，扩频信号的调制与解调，主要用于通信及数字信号处理领域-Commonly used frequency hopping, spread spectrum modulation and demodulation of the signal, mainly used in the field of communications and digital signal processing
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跳频通信仿真平台，提供2FSK、MSK、QPSK信号的跳频调制及解调，可以显示误码率，跳频前后时域波形、频域波形及时频矩阵-Hopping communication simulation platform, providing 2FSK, MSK, QPSK modulation and demodulation signal hopping, you can display error rate, hopping around the time-domain waveform, freque
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This designed to demonstrate how a frequency hoped signal will look like and steps that are required to make a signal hopping from frequency to frequency.-This is designed to demonstrate how a frequency hoped signal will look like and steps that are
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跳频通信中采用BPSK调制之后的信号输出-the output of the signal after using BPSK modulation in frequency hopping communications
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利用小波变换对跳频信号进行参数估计，包括跳时，跳速，频点-wavelet analysis of frequency hopping signal
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CDMA通信系统中的扩频码，跳频码，信号分选，参数估计，调制识别(Spread code in CDMA communication system, frequency hopping code, signal sorting, parameter estimation, modulation recognition)
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