ldpc_system_standard

Perfect, amicable, and sociable numbers

spread spectrum audio water marking technique

MTI，LFM脉冲串信号，对多目标回波进行脉冲压缩，再进行MTI。(MTI, LFM pulse train signal, multi-target echo pulse compression, then MTI.)

数字调制就是把数字基带信号的频谱搬移到高频处，形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控（ASK）、频移键控（FSK）、绝对相移键控（PSK）、相对（差分）相移键控（DPSK）。在接收端可以采用想干解调或非相干解调还原数字基带信号。 (Digital modulation is the spectrum shifting to high frequency digital baseband signals, suitable for the formation of bandpass signal transmission in the channel. Digital modulation basic amplitude keying (ASK), frequency shift keying (FSK), the absolute phase shift keying (PSK), relative (differential) phase shift keying (DPSK). At the receiving end can be used to dry the demodulation or non coherent demodulating the digital baseband signal. )

LLVM: A Compilation Framework forLifelong Program Analysis & Transformation. 2004 International Symposium on Code Generation and Optimization (CGO’04)

利用黄金分割点法计算步长，用来求二次凸函数的最小值的线搜索方法(Using the gold partition point method, the step size is used for the minimum of two convex functions.)

pid，神经网络，模糊控制,专家控制，一些有用的案列(pid, neural networks, fuzzy control, expert control, some useful text columns)

4D可视化程序，非常适合初级学者。很好的参考资料，期待共同进步(4D visualization program, is ideal for junior scholars. A good reference, look forward to progress together)

matlab调用sap2000计算分析代码示例(matlab call sap2000 computational analysis code examples)

mimo的仿真，误码率，比特率随接收天线的变化情况(mimo simulation, error rate, the bit rate changes with the receiving antenna)