chazhiyunihe

摘　要:根据HFC网络上行信道的特性,建立了信道模型 分析了上行信道中存在的各种噪声对QPSK 调制技术的影响。结果表明在C /N (传输信道载噪比)较低的情况下,采用QPSK调制方式,可以提高系 统的抗干扰能力。 关键词: QPSK 光纤同轴电缆混合网 上行信道 噪声(Abstract: HFC network in accordance with the characteristics of the uplink channel, the establishment of a channel model an analysis of the various uplink channel noise on the impact of QPSK modulation. The results show that the C/N (transmission channel carrier-to-noise ratio) lower, the use of QPSK modulation, can improve the system of anti-interference ability. Keywords: QPSK hybrid fiber coaxial cable network uplink channel noise)

RAVE – DataMirrorSection (passo a passo)

mega128定时器0的CTC模式产生的PWM波形(mega128 timer PWM waveform generated by CTC mode 0)

MATLAB CODE FOR EDGE PRESERVING

OFDM信号的PTS算法，用于降低峰均比，v=4，64QAM调制，子载波数可以自己调整(Partial Transfer Sequence Algorithms)

这是一个简单的图像分割的程序段。可以用来很好的分割灰度图像。(This is a simple image segmentation of the program segment. Can be used to great gray image segmentation.)

A cyclic redundancy check (CRC) is an error-detecting code designed to detect accidental changes to raw computer data, and is commonly used in digital networks and storage devices such as hard disk drives. Blocks of data entering these systems get a short check value attached, derived from the remainder of a polynomial division of their contents on retrieval the calculation is repeated, and corrective action can be taken against presumed data corruption if the check values do not match.

Simple two path Rayleigh fading channel

Designing Practical Interval Type-2 Fuzzy Logic Systems Made Simple

基于空域滤波的极大似然比、广义极大似然比、四阶累积量的广义极大似然比水下目标检测算法(Based on spatial filtering of the maximum likelihood ratio, the generalized maximum likelihood ratio, generalized maximum likelihood ratio of fourth-order cumulant underwater target detection algorithm)