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Krakel
计算水声传播的Krakel程序，属于简正波的计算程序，计算低频声波传播时较适合(underwater acoustic propagting computing program, belong to Normal Mode program, nice when low frequency.)
- 2009-06-11 14:17:21下载
- 积分：1
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OFDM_signal
ofdm signal generation
- 2011-07-26 00:06:03下载
- 积分：1
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wireless_communication
无线通信调制解调用的verlog和matlab程序，很大很实用。(Wireless modem calls verlog and matlab program, very very practical.)
- 2010-05-31 10:01:18下载
- 积分：1
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gibbs
吉布斯定轨法。
输入：轨道上任意三个点的位矢(R1,R2,R3)；
输出：质点在R2端点时的速度V2；ierr是个判断符号，返回的ierr是零的话，就说明‘R1,R2,R3’共面，如果ierr是1的话说明‘R1,R2,R3’不共面(正常情 况下，要构成轨道的话，‘R1,R2,R3’一定共面 ，即ierr是零，如果ierr是1的话说明输入的‘R1,R2,R3’不共面不能构成轨道。
此函数用于：任意给定三个空间共面的向量，可以确定质点在R2处的速度V2，也就得到了轨道上的一个状态向量(R2,V2),调用前面的函数就可以确定其轨道，及任意时刻的状态。(Gibbs set the track method. Input: track any three points of the bit vector (R1, R2, R3) output: particle at R2 endpoint speed V2, ierr is a judgment symbol, The ierr that is returned is zero, then, it means' of R1, R2,, R3, ' coplanar, if ierr is 1, then description' of R1, R2,, R3, ' not a total surface (under normal circumstances, you want to constitute a track, then,' of R1, R2, R3, ' a certain total surface, ierr is zero, if ierr is an instructions to enter the words ' of R1, R2, R3' coplanarity can not constitute a track. This function is used: for any given three space vector of the surface, can determine the particle at the speed V2, R2 also track a state vector (R2, V2), call the previous function can determine its orbit, and at any time of the state.)
- 2012-07-22 22:17:35下载
- 积分：1
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nedd
产生地震记录，利用了AVO，而且包含作图部分wigb(simulating seisdata，AVO，wigb)
- 2020-10-28 09:09:58下载
- 积分：1
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huadongDFT
滑动DFT的实现matlab程序滑动DFT的实现matlab程序滑动DFT的实现matlab程序(Sliding DFT implementations matlab program)
- 2015-02-04 15:02:08下载
- 积分：1
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task1
delta modulation tecniques in matlab
- 2013-12-03 20:30:25下载
- 积分：1
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matlab
二级斜齿轮减速器与优化设计
基于中心距的(failed to translate)
- 2013-05-08 22:15:40下载
- 积分：1
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wm
水面无人艇(Unmanned Surface Vehicle)的航迹控制对提升无人艇艇载设备
侦察观测效果以及多任务作战能力具有十分ffi要的意义。由于受到风、浪、流等
干扰环境影响,水而无人艇将产生六自由度的操纵运动,具有很强的非线性和随
机性。这将致使无人艇的航向航迹及姿态控制具有一定的难度,因此需要对水面
无人艇建立六自由度操纵模型,更好地实现对无人艇的控制。
采用经典的MMG分离建模思想,依托浜本刚实提出的水平附体坐标系,建
立水面无人艇的六自由度操纵运动方程。分析无人艇艇体、桨、舵所受的流动动
力和力矩,分别建立流体惯性力模型、流体粘性力模型、螺旋桨推力模型及舵机
模型。
考虑海况和气象环境的影响,分析风、浪作用于无人艇上的T扰力。将随机
风简化为定常风,建、风的干扰力数孕模型 采用傅汝德-克茁洛火(Froude - Krylov)
假设,研究规则波中无人艇受到的T扰力,述立波浪的r扰力数学投型。
在数学模型的站础上述立?于MATLAB/Simulink的仿i t校型,并进行典型的
冋转试验,分别分析不同海况下的无人艇的问转情况。无人艇丨 丨主航行时,在不
同海况下,绘制出其航速及船摇炻的变化曲线。通过总结分析,推论出多种海况
(The course and track control of unmanned surface vehicle (USV) is important to
improve the observational effect of the recon reconnaissance equipment and the multi-
-mission operational capability. Because of the effects of wind, wave and flow, the
unmanned surface vehicle will produce six degrees of freedom movement which has
randomicity and nonlinearity. It is difficult of the course, track and attitude control of
unmanned surface vehicle, so six degrees of freedom movement model is built for the
better control of unmanned surface vehicle.
According to the classic MMG s separated modeling theory and the horizontal
body axes system which was developed by Hamamoto, this thesis describes a six
degrees of freedom motion equation of unmanned surface vehicle. Through analyzing
the hydrodynamic force and moment, the fluid inertia force model, the fluid viscous
force model, propeller thrust model and steering gear model are built respectively.
Considering )
- 2016-03-29 10:22:42下载
- 积分：1
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12
说明： 改进的PRI变换应用于3个重频抖动脉冲序列(Improve the PRI transform to three-repetition-rate pulse train jitter)
- 2011-07-08 11:58:49下载
- 积分：1
