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nonlinear_optical_fiber
信号光在光纤中受色散,自相位调制,交差相位调制效应影响时的非线性传输方程的求解.(By the signal light in the fiber dispersion, self phase modulation, cross phase modulation effects in nonlinear transmission equation.)
- 2010-09-27 10:05:18下载
- 积分：1
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TargetLocatAccuracyRadarNetwork
分析了影响多雷达组网对目标跟踪精度的因素以及与单雷达的差异,提出了定义雷达网目
标定位精度,以及评估多雷达组网后在目标定位精度方面带来增益的方法。推导了雷达网对目标定
位精度和相应评估指标的估计公式。该文方法不要大量的计算机仿真就可以方便地评估2-D、3-
D以及混合雷达网的目标定位精度和效能。通过应用实例说明了该文方法的优点和有效性。
(The factors that affect the location accuracy of target tracked by multi-radar are analyzed.The method
to define target location accuracy and the metrics to evaluate the accuracy improvement efficiency of a radar net-
work are presented.The analytical expressions are developed to estimate the target location accuracy and the effi-
ciency metricsof a radar network.The presented method is convenient to evaluate the target location accuracy and
the efficiency of 2-D,3-D as well as the heterogeneous radar network instead of the tedious computer simula-
tions.The advantages and the validity of the method are demonstrated by an application.
)
- 2014-01-04 21:37:02下载
- 积分：1
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e2qaq2e
用欧拉角表示的飞行器姿态运动学方程在大角度时会出现奇异现象,而采用四元数来
表示,则可以避免这个问题。因此,飞行器运动学方程都采用四元数来表示。而飞行器的控
制规律都采用欧拉角来表示,且欧拉角表示姿态角比起四元数更加形象,更易于被人理解,
所以,在飞行器控制系统仿真设计的时候,需要四元数与欧拉角之间的转换。给定1 个欧拉
角,对应1 个四元数,因而欧拉角到四元数之间这种一一对应的关系使得欧拉角到四元数的
转换比较容易。但是,1 个四元数通常有1 个或者2 个欧拉角与之对应,它们之间不是一一
的对应关系,因而,四元数到欧拉角之间的转换比较困难。一般文献或者参考资料上的转换
仅仅适于欧拉角在- 90°～ + 90°之间的情况[1 ] 。文献[ 2 ,3 ]中给出了滚动轴在- 90°～ + 90°
之间变化,俯仰轴、偏航轴在- 180°～ + 180°之间变化的四元数到欧拉角的转换公式。本文
提出了滚动、俯仰和偏航3 个轴的欧拉角均在- 180°～ + 180°之间取值的全角度转换算法,
经过数字仿真证实,这个算法是完全正确的、而且很实用。(Euler angles of the spacecraft attitude kinematics equation at large angles appear strange phenomenon, and quaternion
, You can avoid this problem. Therefore, the aircraft kinematic equations using quaternion to represent. Aircraft control
The system of law Euler angles and Euler angles attitude angle than the the quaternion more image easier to be understood,
Therefore, in the design of aircraft control system simulation, you need to convert between quaternions and Euler angles. Given an Euler
Angle corresponding to a quaternion, which this one-to-one relationship between the Euler angles to quaternion makes Euler angles to quaternion
Conversion is relatively easy. However, a quaternion usually have one or two corresponding Euler angles between them than eleven
The correspondence relationship, therefore, the quaternion to convert between the Euler angle is relatively difficult. General literature or reference conversion
Only suitable for Euler angles- 90 ° to+ 90 ° betwe)
- 2013-05-10 22:42:47下载
- 积分：1
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itufwdup
包含收发两个客户端的链路级通信程序,DrIzten参数通过matlab代码，单径或多径瑞利衰落信道仿真，基于matlab GUI界面设计,EjbsXmo条件是路径规划的实用方法，表示出两帧图像间各个像素点的相对情况。( Contains two clients receive link-level communications program, DrIzten parameter By matlab code, Single path or multipath Rayleigh fading channel simulation, Based on matlab GUI interface design, EjbsXmo condition Is a practical method of path planning, Between two images showing the relative circumstances of each pixel.)
- 2016-02-20 10:47:37下载
- 积分：1
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parallel-asynchronous-pso_05
包括：用基本粒子群算法求解无约束优化问题，用带压缩因子的粒子群算法求解无约束优化问题，用线性递减权重粒子群优化算法求解无约束优化问题，用自适应权重粒子群优化算法求解无约束优化问题，用随机权重粒子群优化算法求解无约束优化问题，用学习因子同步变化的粒子群优化算法求解无约束优化问题，用学习因子异步变化的粒子群优化算法求解无约束优化问题，用二阶粒子群优化算法求解无约束优化问题，用二阶振荡粒子群优化算法求解无约束优化问题(Include: using the particle swarm algorithm for unconstrained optimization problems, with compression factor of particle swarm algorithm for solving unconstrained optimization problem with linear decreasing weight particle swarm optimization for unconstrained optimization problems, an adaptive weight particle swarm optimization unconstrained optimization problems, random weight particle swarm optimization algorithm for unconstrained optimization problems, with the learning factor synchronous change of particle swarm optimization algorithm for unconstrained optimization problems, with the learning factor asynchronous changes in particle swarm optimization algorithm for solving unconstrained optimization problem , with the second particle swarm optimization for unconstrained optimization problems, with the second-order oscillating particle swarm optimization algorithm for unconstrained optimization problem)
- 2011-04-25 13:30:49下载
- 积分：1
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Project_thesis
colleration in fingerprint
- 2012-04-02 21:22:00下载
- 积分：1
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ber512
Turbo码的编、译码算法对误码率的影响(Effect of Encoding and Decoding Algorithm of Turbo codes bit error rate)
- 2017-01-02 19:25:47下载
- 积分：1
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speechenhancementslides
Image Denoising using Non-local Wavelet Basis
- 2011-01-04 06:36:32下载
- 积分：1
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lagrange-matlab
这个matlab程序实现了牛顿插值 （Newton s Interpolation ）算法(This function performs the Lagrange interpolation of a function and its derivative. Approximations and Interpolation.)
- 2011-01-05 10:01:53下载
- 积分：1
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braking-of-induction-motor
braking of induction motor.
- 2014-10-16 17:46:14下载
- 积分：1
