satellite-communication-systems

这是一个改进的自适应canny算法，该方法采用改进的开关型中值滤波器对图像做去噪工作，再把整幅图像分割为若干子图像，最后在充分考虑全局以及各子图像的边缘梯度信息后，自适应地生成动态阈值。(The new Canny adaptive method divides image into sub-images,then determinates the thresholds automatically according to the whole image edge information and the sub-images edge information.)

主要介绍了采用单载波技术降低OFDM系统PAPR的方法，仿真验证是可行的。(This code mainly describes the PAPR reduction method with SC-OFDM technique, and which ahs been verified by the simulations.)

Particle swarm optimization has been used to solve many optimization problems since it was proposed by Kennedy and Eberhart in 1995 [4]. After that, they published one book [9] and several papers on this topic [5][7][13][15], one of which did a study on its performance using four nonlinear functions adopted as a benchmark by many researchers in this area [14]. In PSO, each particle moves in the search space with a velocity according to its own previous best solution and its group’s previous best solution. The dimension of the search space can be any positive integer.

在通信系统中的信息传输之前对信源编码的调制来减少误码率的一种方法， 增量调制的调制和解调的算法(Before transmission in a communication system the information in the modulation of source coding to reduce the error rate of a kind of method, Delta modulation and demodulation algorithm )

本算法用于matlab编写多目标粒子群算法，经过多次调试，说明详细，可直接使用(For multi-objective particle swarm algorithm)

计算船舶pitch运动阻尼 经验公式法 计算船舶pitch运动阻尼 经验公式法(calculate pitch motion and damping by empirical equations)

高炜炳老师1996年写的变结构控制的经典书籍，有助于学习变结构相关的内容(sliding model control of nonlinear system control)

fault detection and classification

PSK Modem (Phase Shift Keying Modulator & Demodulator) generating Message Signal by using Kasami sequence generator then Unipolar to polar converter. and Multiply Carrier to generate PSK signal. Demodulation by product in Carrier then Filter then Decision.

通过此程序希望可以对基本的分岔过程有一个感性的认识(Hope that through this procedure can be the basic process of bifurcation has a perceptual awareness of)