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kuopin
直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频(Direct sequence spread spectrum (DS, Direct Sequence) modulation system, also known as direct sequence or pseudo-noise system (PN system), referred to as direct expansion systems, is currently the more widely used as a spread spectrum system. To send the information encoded by the pseudo-random sequence of carrier modulation. End of winter in the letter to extend the signal with the spreading sequence of spectrum, in the end prepared to receive and use the same sequence spread spectrum despreading friends, broadening the spectrum to restore the original signal expansion signals. Because the rate of pseudo-random sequence is much larger than the rate of information to be sent, so the frequency spectrum by adjusting the width of the spectrum is much larger than the width of the information to be sent to help is called spread spectrum)
- 2011-01-09 16:54:26下载
- 积分：1
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Untitledjiwangfei0905094221
1、分别生成两种信号（正弦波、方波、三角波、锯齿波、Sinc波形等）+噪声（高斯随机噪声、均匀噪声）
要求：频率：学号*100；
幅度：学号/10
相位：学号*pi/180
点数：学号*64
2、同时在一个图形中进行显示：
要求：标注X轴、Y轴、题目、颜色、样式、线型标注等。
3、进行信号分析及结果显示（对结果也要图形标注，同2）
要求：相关分析
卷积运算
求和运算
频谱分析（最大值、测频）
4、对上述原信号及信号分析结果分别存成EXCEL文件、文本文件和二进制文件，命名为名字+班级+学号+后缀(1, respectively, to generate two signals (sine wave, square wave, triangle wave, sawtooth wave, Sinc waveform, etc.)+ noise (Gaussian random noise, uniform noise) requirements: Frequency: No.* 100 margin: Student ID/10 phase: learning* pi/180 Points: No.* 642, in a graphical display: Requirements: X-axis label, Y axis, the title, color, style, linear marked. 3, signal analysis and results display (graphical results also marked with 2) requirements: analysis convolution summation spectrum analysis (maximum frequency measurement) 4, the original signal and the signal analysis results were kept into EXCEL files, text files and binary files, named for Name the+ class++ suffix number)
- 2012-06-20 16:15:59下载
- 积分：1
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state_system
state system for DFIG model
- 2012-10-07 17:10:15下载
- 积分：1
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HUONG
说明： simulation ldpc by matlab
- 2020-06-26 18:20:02下载
- 积分：1
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matlab-optical
优化问题的matlab解决方法，包括最优路径和动态规划、线性规划问题(optimization problems Matlab solutions, including optimal routing and dynamic programming, linear programming problem)
- 2007-05-13 11:19:03下载
- 积分：1
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Boundary-tracking-algorithm--mfile
用matlab编写的边界跟踪算法，用到了freeman链码和爬虫法，可以有效的跟踪单个物体边界，适合于初学者。(
Prepared using matlab boundary tracking algorithm uses a freeman chain code and reptiles method can effectively track a single object borders, suitable for beginners.)
- 2020-12-07 10:39:22下载
- 积分：1
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soliton
采用分步傅里叶方法对NLSE 进行了求解，并在归一化和功率补偿条件下模拟和分析了输入脉冲为双曲正割脉冲，高斯脉冲，超高斯脉冲传输对比情况，以及一到三阶双曲正割光脉冲条件下光脉冲传输演变情况(Using split-step Fourier method NLSE was solved, and in the normalization and power compensation under simulation and analysis of the input pulse for the hyperbolic secant pulse, Gaussian pulse, the comparison of super-Gaussian pulse transmission, and a to the three conditions, the hyperbolic secant pulse evolution of optical pulses)
- 2010-10-08 12:17:32下载
- 积分：1
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fuzzy_pid
直流伺服电机用MATLAB实现的源代码，伺服系统由具有位置反馈、速度反馈和电流反馈的三闭环结构组成本控制系统采用模糊和PID复合控制，在小偏差时转化为P ID控制，这样就获得了比纯模糊控制更高的稳态精度，有比P ID控制更快的动态响应、更小的超调量。(DC servo motor to achieve with the MATLAB source code, by a position feedback servo system, the speed feedback and current feedback loop structure composed of three of the control system using fuzzy and PID compound control, in a small deviation into the P ID control, so that access to higher than the pure fuzzy control steady-state accuracy, faster than P ID control the dynamic response, smaller overshoot.)
- 2010-11-07 10:48:00下载
- 积分：1
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drulhe_segm_demo
PICTURE SEGMENTATION Using a RECURSIVE CLUSTERING SPLITTING METHOD
- 2010-03-09 02:27:29下载
- 积分：1
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nlopt-2.2.3.6.1-dll
内含结构拓扑优化的众多数学规划方法，其中包含最小二乘法、移动渐近线法等等(The file includes many methods for topology optimization，such as the method of moving asymptotes.)
- 2013-03-12 20:15:19下载
- 积分：1
