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GSM 调制的协议规定,主要是GMSK 高斯滤波最小移频键控调制 里面具体说明了调制方法和参数-GSM modulation of the agreement, is the smallest GMSK Gaussian filter frequency-shift keying modulation inside specify the modulation method and parameters
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最小高斯移频键控调制性能仿真,含频谱分析,matlab的simulink实现,Gaussian minimum shift keying modulation frequency performance simulation, including spectral analysis, matlab achieve the simulink
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GMSK是高斯滤波的最小频移键控的简称,基本的工作原理是将基带信号先经过高斯滤波器成形,再进行最小频移键控(MSK)调制。由于成形后的高斯脉冲包络无陡峭边沿,亦无拐点,因此频谱特性优于MSK信号的频谱特性。-GMSK Gaussian filter is the smallest FSK abbreviation, the basic working principle is to base-band signal to pass Gaussian filter shape, and then
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自动识别系统电台的卞要功能是在接收状态将接收到的射频信号解调成高斯最小频移键控(GMSI})比特流以供信号处理板使用 而在发射状态则将来自处理板的9.6 kbps的GMSI}比特流调制成适合发射的射频信号并发射。木电台使用半双工方式工作,共用一副大线,其中发射通路只有一个通道,但可通过微处理器改变调制芯片LMX1501的内部设置数以产生两个频率,然后再经过卜变频得到中心频率分别为162.025 MHz和161.975 MHz的发射信号 木电台的接收则分为二路,其解调芯片都是用TA31136来实
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:为了论证高斯最小频移键控(GMSK)信号在时域和频域的相互关系,分析了GMSK信
号调制原理和滤波器传递函数,建立了GMSK调制和解调模型。-: In order to demonstrate Gaussian Minimum Shift Keying (GMSK) signal in time domain and frequency domain, the relationship between the analysis of GMSK signal modulation princ
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主要完成通信最小高斯移频键控的相关一些函数的功能-Mainly to complete the minimum Gaussian frequency shift keying communications related to the function of some function
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A noncoherent, bandwidth-efficient modulation
scheme is proposed for frequency-hopping multiple-access
(FH-MA) networks. The proposed scheme is a combination
of noncoherent -ary amplitude-shift keying (NMASK) and
orthogonal frequency-division
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