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在 OFDM 数学原理和收发模型的基础上，本文对帧同步、定时同步、频率同
步和采样同步给 OFDM 系统所产生的影响进行了理论分析，同时讨论了基于循环
前缀或训练符号的典型 OFDM 同步算法。参考 802.11a 突发数据帧结构和系统参
数，分析几种 OFDM 同步算法用于突发分组传输的性能；在分析了几种经典的信
道估计算法基础上,通过对复杂度和性能的折衷，选择一种适合本文系统的估计
算法。最后作者提出一种改进型 LS 信道估计算法，该算法考虑了 LS 算法中噪声
的影
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基于MATLAB平台的PWM调制正弦波的快速傅里叶分析-his model simulates and computes Fourier analysis of PWM based sinusoidal waveform. Fundamental frequency can be changed in model properties. Amplitude modulation index and frequency modulation index can be adjusted in Sim
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用频率300HZ正弦波调制频率30KHZ的正弦波，采用同步解调，观察调制信号、已调信号、解调信号的波形、频谱以及解调器输入输出信噪比的关系。-300HZ frequency sine wave with a sine wave modulation frequency 30KHZ, using synchronous demodulation, the modulated signal was observed, modulated signal, the waveform of the dem
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it gives the frequency modulation
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LFMCW线性调频波仿真，MATLAB代码，信源部分仿真。-LFMCW linear frequency modulation wave simulation, MATLAB code, and source part of the simulation.
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高精度、低功耗模数转换器是当今集成电路设计模拟领域的研究热点之一，采用sigma-delta调制原理和过釆样原理的模数转换器广泛使用在音频、数字网络、电子测量等系统中。此类模数转换器，为降低信号带内的量化噪声功率，而釆用噪声整形技术，为提高模数转换器的信噪比，使用过采样技术，将基带中的量化噪声调制到了高频区域，这样就增加了基带中的信噪比，也就是增加了转换器的有效量化位数，由于采用较高的过采样率，Sigma-Delta ADC的转换速率相对较低，高精度和较低转换速率的特点，使得Sigma-Delt
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用基带等效方式仿真16-QAM载波调制信号在AWGN下的误码率-With the baseband equivalent simulation 16-QAM carrier frequency modulation signal in AWGN bit error rate
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对称三角线性调频连续波信号模糊函数分析Symmetrical triangular linear frequency modulation continuous wave signal ambiguity function analysis-Symmetrical triangular linear frequency modulation continuous wave signal ambiguity function analysis
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分数复利叶变换 用于测量距离和信号压缩 使用广泛-Calculation of the Fractional Fourier Transform
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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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Abstract—In slow frequency hopping systems, it is critical
to detect, classify, and mitigate interference, as it degrades the
system performance. Generalized likelihood ratio test algorithm
was proposed for the detection of interference. Howeve
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线性调频(LFM)脉冲压缩hamming加权 matlab 仿真!-Linear frequency modulation (LFM) pulse compression hamming weighted matlab simulation!
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Phase Locked Loops (PLL)
Introduction to PLL
The concept of Phase Locked Loops (PLL) first emerged in the early 1930’s.But the technology was not developed as it now, the cost factor for developing this technology was very high. Since the adva
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基于 FPGA 的雷达脉冲压缩系统的研究与实现,本文从线性调频信号的时、频域特征出发，根据脉冲压缩体制的理论，分析了脉冲压缩信号处理算法的实现方法-The study of the radar pulse compression system based on FPGA and implementation, based on the linear frequency modulation signal time and frequency domain characteristics, acc
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This example demonstrates frequency modulation and demodulation of
a basic message signal. The time-domain and frequency-domain signals
are plotted for the original message signal, the transmitted signal, and the demodulated signal.
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CPM均衡的文献一篇，上传给大家看看，顺便农的下载次数-Frequency-Domain Equalization for Continuous Phase Modulation
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modulation for radio frequency channel
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Narrow band frequency modulation with added white gaussian noise.
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step wise implementation of Frequency modulation in open source GNU radio software (gnu radio companion files and python files)
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Inermodulations to be used in Frequency modulation
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