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Description: Abstract：Thearticleismainlydevotedtothetheoryaswellastheachievementonthemodulationanddemodulationofπ/
4-DQPSKsysteminthesoftwareSystemView.Besides，thearticleanalysesthedynamicandstatic
behaviorsoftheπ/4-DQPSKsystemaswellastheperformanceagainstnoiseundertheconditionofGaussnoise
channel.Thecomparisonismadeonthespectrumandanti-noiseperformancebetweenπ/4-DQPSKandQPSK
underthethesamechannel.Theresultofsimulationshowsthatthespectrumexpandingofπ/4-DQPSKissuperiortothatoftheQPSKsystem.
Keywords：π/4-DQPSK；SystemView；computeraideddesign（CAD）；Matlab-Abstract:
Thearticleismainlydevotedtothetheoryaswellastheachievementonthemodulationanddemodulationof
pi/4-DQPSKsysteminthesoftwareSystemView.Besides,
thearticleanalysesthedynamicandstatic behaviorsofthe pi
/4-DQPSKsystemaswellastheperformanceagainstnoiseundertheconditionofGaussnoise
channel.Thecomparisonismadeonthespectrumandanti-noiseperformancebetween
pi /4-DQPSKandQPSK
underthethesamechannel.Theresultofsimulationshowsthatthespectrumexpandingof
pi /4-DQPSKissuperiortothatoftheQPSKsystem. Keywords: Pi /4-DQPSK;
SystemView; Computeraideddesign (CAD); Matlab
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Size: 160540 |
Author: 里里强 |
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Description: matlab中极坐标函数的改进，坐标轴刻度可以为负数，输入参数见注释，有问题email联系，可在matlab命令行中直接运行，如：
my_polar2([0,20,30]*pi/180,[-10,0,10], -r ,-20,30)-Matlab polar coordinates function improved, axes calibration can be negative, the input parameters, see Notes email problems can be contacted in Matlab command line direct operations, such as : my_polar2 ([0,20,30] * pi/180 [-10,0,10], - r, -20,30)
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Size: 3108 |
Author: ningc |
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Description: 此代码为pi/4-dqpsk的调制解调算法，用MATLAB实现，采用插分解调，简单实用-pi/4-dqpsk this code for the modulation and demodulation algorithm in MATLAB, transfer took decomposition, simple and practical
Platform: |
Size: 1459 |
Author: 周冰 |
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Description: taylor逼近计算器，有非常好的逼近拟合功能(TAYLORTOOL is an interactive Taylor series calculator that graphs a function f against the Nth partial sum of itsTaylor series over [-2*pi,2*pi].)
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Size: 3072 |
Author: xuef
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Description: 用蒙特卡洛模拟求解圆周率，在MATLAB上实现 以及模拟马尔科夫过程(Monte Carlo simulation for solving pi)
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Size: 57344 |
Author: zz未
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Description: 导航坐标系：东-北-天
载体坐标系：右-前-上
姿态角范围：-PI/2<=pitch<=PI/2, -PI<roll<=PI, -PI<yaw<=PI
注意程序中方位北偏西为正(Navigation coordinate system: East North day
Carrier coordinate system: right - front - up)
Platform: |
Size: 23552 |
Author: 马丁123
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Description: Matlab code for tuning PI control parameter
Platform: |
Size: 26624 |
Author: Ibrahima
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Description: 这是一个有关PI模型系统辨识的MATLAB程序，并附有MATLAB仿真30个案例以便于学习(This is a PI model identification program)
Platform: |
Size: 4237312 |
Author: 画心 |
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Description: 单相并网逆变器并网电流中含有大量谐波，传统的PI 控制器难以满足波形跟踪需要，此处采用比例+复的复合控制算法用于逆变器电流环控制器设计(The single-phase grid-connected inverter has a large amount of harmonics in the grid-connected current. The traditional PI controller can not meet the needs of waveform tracking. Here the proportional + complex compound control algorithm is used for the inverter current loop controller design.)
Platform: |
Size: 553984 |
Author: 小言资学 |
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Description: Buck PI simulation in matlab
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Size: 22528 |
Author: AnhNguyen |
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Description: 这是一个非常完整的pi/4dqpsk 调制解调的matlab仿真，给出了各个阶段的波形图，并且分析了在高斯信道下面的误码率，以及星座图和功率谱(This is a very complete matlab simulation of pi/4dqpsk modulation and demodulation. The waveform diagram of each stage is given, and the bit error rate under Gao Si channel, constellation diagram and power spectrum are analyzed.)
Platform: |
Size: 90112 |
Author: 随便一个名字 |
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Description: 基于matlab平台，平行计算pi值结果，节约时间(Based on MATLAB platform,parallel computation of PI results,saves time.)
Platform: |
Size: 1024 |
Author: gougou_628 |
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Description: 对于实序列??[??]=??????(????/??)，???≤??≤????；计算出??(??????)。并对x[n]作奇偶分量分解，分别计算出奇、偶分量的频谱????(??????)与谱 ????(??????)。
（1）频率计算范围：-pi~pi，频率步长设置：pi/800；
（2）分别画出：x[n]的频谱实部、x[n]的频谱虚部、偶分量的频谱实部、偶分量的频谱虚部、奇分量的频谱实部、奇分量的频谱虚部；排列方式如图所示；
（3）6个图的横坐标对pi作归一化处理，显示范围设置为：-1~1
6个图的纵坐标显示范围：min~max(Draw the real part of the spectrum of x[n], the imaginary part of spectrum of x[n], the real part of the spectrum of the even part, the imaginary part of the spectrum of the even part, the real part of the spectrum of the odd part, and the imaginary part of the spectrum of the odd part; The arrangement is as shown in the figure;
(3) The abscissa of the six graphs is normalized to pi and the display range is set to: -1~1
The y-coordinate display range of 6 maps: min~max)
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Size: 124928 |
Author: Ky_Brave |
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Description: 用Matlab进行钢板挤压小球变形的 动画仿真,其中椭球体的体积公式为V＝4*pi*a*b*c/3,
a、b、c为其3个轴的半长。(Animation simulation of the deformation of steel plate extruded ball)
Platform: |
Size: 119808 |
Author: casseyo |
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Description: 基于矢量控制算法的永磁同步电机电压前馈PI控制模型，可作为算法开发的基础模型。(The voltage feed-forward PI control model of PMSM based on vector control algorithm can be used as the basic model of algorithm development.)
Platform: |
Size: 28672 |
Author: rugosa |
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Description: 直流电机调速系统的MATLAB仿真研究 针对采用工程法确定的双闭环直流调速系统PI调节器参数，存在对动态性能要求高的系统 控制效果不佳的问题。采用模拟仿真实验的方法，优化PI调节器参数，提升系统动态性能。通过 在MATLAB中建立系统仿真模型，模拟不同工况进行仿真实验，对工程法确定的PI参数进行优 化。从仿真结果中可以看出，优化后的调速系统超调量和调节时间均变小，调速性能更优
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Size: 1733583 |
Author: AlipayLogin_2088522043742795 |
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Description: 永磁直驱风机的MATLAB仿真，实现了基于PI控制的0d轴控制(MATLAB simulation of permanent magnet direct drive fan)
Platform: |
Size: 14336 |
Author: 天天注册 |
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Description: 遗传算法(GeneticAlgorithm,GA)是一种基于进化论优胜劣汰、适者生存的物种遗传思想的搜索算法。20世纪50年代初，由于一些生物学家尝试用计算机模拟生物系统，从而产生了GA的基本思想。美国密执根大学的霍勒德(J.H.Holland)于20世纪70年代初提出并创立了遗传算法。遗传算法作为一种解决复杂问题的崭新的有效优化方法，近年来得到了广泛的实际应用,同时也渗透到人工智能、机器学习、模式识别、图像处理、软件技术等计算机学科领域。(exmple:quest the maximum value of the equation:f= @(a,b)(a.*sin(a.*4*pi))+(b.*sin(20*pi.*b))+21.5 during(-2<x<12.5))
Platform: |
Size: 3072 |
Author: wentgo |
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Description: folder = 'C:\Users\erinb\Documents\NTNU\Teaching\EWEM_H14\ProjectDescription\xxSRA_models\OC4semi\Decay6'; % folder
% where the analysis was carried out
bodyNum = 1; % body number
motion = 6; %1 for surge, 3 for heave, 5 for pitch, 6 for yaw
FFT_tmax = 1000; % maximum time for the FFT plot
%(reduce if motions have already died out)
endRamp = 360; % start time for decay test
matfileName = 'm001.m';
wnForDampCoeff = 2*pi/80.4; % natural frequency in rad/s for damping coefficient
% calculation. The damping coefficient calculation will not run for
% wnForDampCoeff=0. This should be updated.
Platform: |
Size: 414720 |
Author: tariq |
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Description: 基于matlab搭建PMSM基础控制模型，采用双环PI控制策略。(PMSM basic control model was built based on matlab, and double-loop PI control strategy was adopted.)
Platform: |
Size: 30720 |
Author: ilovely123 |
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