duojingxiaoying

ofdm系统中降低峰均比的两中基本算法：SLM算法和PTS算法。(ofdm systems reduce the PAPR of the two algorithms: SLM algorithm and the PTS algorithm.)

pso alghoritm for different function

2ask调制，波形生成，图像生成，波形识别(2ask modulation, waveform generation, image generation, waveform recognition)

现代通信系统MATLAB第二版，所有仿真程序，对于初学者很有用(Modern communications system, all the second edition of MATLAB simulation program for beginners is very useful)

说明：  实现最陡下降法,研究步长因子和特征扩散度对收敛速度的影响(Achieve the steepest descent method to study the characteristics of step length factor and the proliferation of degree of influence on the convergence rate)

对三种雷达信号调制类型的识别，包括单载频 线性调频和相位编码，并做时频分析(The identification of three kinds of radar signal modulation, including single carrier linear frequency modulation and phase encoding, and time-frequency analysis)

蒙特·卡罗方法（Monte Carlo method），也称统计模拟方法，是二十世纪四十年代中期由于科学技术的发展和电子计算机的发明，而被提出的一种以概率统计理论为指导的一类非常重要的数值计算方法。是指使用随机数（或更常见的伪随机数）来解决很多计算问题的方法。与它对应的是确定性算法。蒙特·卡罗方法在金融工程学，宏观经济学，计算物理学（如粒子输运计算、量子热力学计算、空气动力学计算）等领域应用广泛。(The Monte Carlo method, also known as the statistical simulation method, was proposed in the mid-1940s due to the development of science and technology and the invention of electronic computers. A very important numerical calculation method for classes. Refers to the use of random numbers (or more common pseudo-random numbers) to solve many computational problems. Corresponding to it is a deterministic algorithm. The Monte Carlo method is widely used in financial engineering, macroeconomics, computational physics (such as particle transport calculation, quantum thermodynamics calculation, aerodynamic calculation).)

generation of wideband and high dynamic range analog signal for area-efficient MADBIST, especially for the on-chip testing of wireless communication IF digitizing sigma–delta modulator chip. Via increasing the order of the one-bit bandpass sigma–delta modulation algorithm up to 12 and using finite repetitious bitstream approximating scheme, it can achieve great improvements in signal bandwidth instead of purity at the cost of very little hardware overhead. Another contribution in this work is to provide the theoretical analysis of the reconstructed signal degradation due to harmonic distortion and clock jitter. Such on-chip analog stimulus generation scheme is especially fit for IF digitizing bandpass sigma–delta modulator chip s production-time testing and in-the-field diagnostics. The technique can also be extended to mixed-signal communication SoC built-in-self-test.

integrated photonics ebook

将微分方程的在相图上的向量场和极限环画出来(limit cycle and Vector Field)