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[Books] pcm DL : 0: pcm均匀pcm与非均匀pcm 一。产生长度为500的零均值，单位方差的高斯随机变量序列，用均匀pcm的方法用16电平进行量化：1）求所得的SQNR，该序列的前5个值，相应的量化值和相应的码字。2）画出量化误差（定义为输入值和量化值之间的差），同时画出量化值作为输入值的函数的图。3）用128量化电平数重做2）题，比较结果。-pcm uniform pcm with a non-uniform pcm. Have a length of 500 zero-mean, unit variance Gaussian random variables with a uniform method of pcm level by 16 to quantify: 1) demand from SQNR, the sequence of the first five values, the corresponding quantization value and the corresponding code word. 2) draw quantization error (defined as the import value and quantify the value of the difference between), at the same time draw to quantify the value of the import value as a function of the map. 3) 128 to quantify the number of redo-level 2) title, the results of the comparison.
Date : 2025-12-29 Size : 4kb User : jin
[Books] stablemovementscenario DL : 0: 用NS- 2 仿真各种路由协议性能时用到的传统运动场景发生器存在两个缺陷: 运动状态不能迅速过渡到稳态, 节点速度的均匀分布区间起始值只能为0。为了弥补上述缺陷, Tracy Camp 研制了稳态运动场景发生器。通过仿真验证了采用该发生器可大大缩短仿真时间, 在此基础上仿真AODV 和DSDV 两种路由协议, 首次从吞吐量、协议包开销、平均延迟三个方面对稳态运动场景下的两种路由协议性能进行分析, 得出结论表明采用稳态运动场景进行路由协议仿真是非常必要的。关键词: 稳态运动场景 setdest 更新过程 Random Waypoint-Abstr act: As a module of NS2, the traditional movement scenario generator, when simulating routing protocol, has two limitations. One is that the transition time of stable status is long, and the other is that the uniform- distributing low bound of node speed is only zero.To remedy these faults, Tracy Camp has developed a stable movement scenario generator.The simulation proves that simulation time can be reduced largely by using this generator.Based on this result, a simulation for AODV and DSDV routing protocol is implemented.Then the performance of two protocols is analyzed on three aspects: throughput, routing overhead packets, average delay.At last the conclusion is drawn, which shows it is essential to adopt stable movement for simulation of routing protocols. Key words: stable movement scenario setdest renewal process Random Waypoint
Date : 2025-12-29 Size : 168kb User : 王立
[Books] 99 DL : 0: 这是方开泰和王元写的均匀设计与均匀设计表的著作，对于试验设计的初学者会有很大的帮助。-It is written by Wang Yuan Fang Kaitai and uniform design with the uniform design table book, designed for the experiment will be very helpful for beginners.
Date : 2025-12-29 Size : 2.46mb User : 王磊
[Books] mu_quantizer DL : 6: This m-file applies uniform quantization on a given audio signal called music_ee6424.wav It then plots waveforms and gives the Mean Square Quantization Error (MSQE)
Date : 2025-12-29 Size : 1kb User : Darsh