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使用verilog实现全数字16QAM调制器，载波频率1MHZ，数据比特流的速率为100Kbps,(the modulation of 16QAM based on FPGA)

说明：  对输入信号进行量化，n为你想要的量化级数；可输出量化前后信噪比，量化后信号，和量化后的二进制序列(Quantize the input signal, n is the quantizing series you want; output the signal-to-noise ratio before and after quantizing, the quantized signal, and the quantized binary sequence)

说明：  语言的文法规则 说明 对原编译程序作了如下修改,增加了输入文件(The grammar rules of the language have been modified as follows to add input files to the original compile)

bit interleaved coded modulation Performance in AWGN for different trellises

WIgner Ville Distribution for time frequency analysis

正交频分复用系统中信号的调制与解调，我们用傅里叶反变换和变换来实现(Orthogonal frequency division multiplexing system signal modulation and demodulation, and we use the inverse Fourier transform to achieve transform)

zigbee的一些基础知识，引脚及其相关协议等(basic zigbee )

说明：  ：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 principle and the filter transfer function established model for GMSK modulation and demodulation.)

MATLAB代码，产生GNSS导航信号BOC调制的相关频谱特性(The generate of BOC signal AND ITS PDF)

说明：  运用近似熵算法对cpm信号进行调制识别，然后计算识别率。(The approximate entropy algorithm is used to recognize the modulation of CPM signal, and then the recognition rate is calculated.)