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[Other] dsphomework1 DL : 0: 数字信号处理的应用之一是从含有加性噪声的信号中去除噪声。现有被噪声污染的信号x[k]=s[k]+d[k],式中：为原始信号d[k]为均匀分布的白噪声。（1）分别产生50点的序列s[k]和白噪声序列d[k],将二者叠加生成x[k],并在同一张图上绘出x0[k],d[k]和x[k]的序列波形。（2）均值滤波可以有效去除叠加在低频信号上的噪声。已知3点滑动平均数字滤波器的单位脉冲响应为h[k]=[1,1,1 k=0,1,2],计算y[k]=x[k]*h[k],在同一张图上绘出前50点y[k],s[k]和x[k]的波形，比较序列y[k]和s[k]。 -digital signal processing applications from one containing additive noise signal denoising. Existing noise pollution was a signal x [k] = s [k] d [k], where : of the original signal d [k] uniform distribution of white noise. (1) have 50 points each sequence s [k] and white noise sequence d [k] superposition of the two generation x [k] and the same is likely to draw a map x0 [k] d [k] and x [k] waveform sequence. (2) mean filter can effectively remove superimposed on the low-frequency noise on the signal. 3:00 known moving average digital filter unit for pulse response h [k] = [k = 0,1,2 1,1,1] Calculation y [k] = x [k] * h [k], the same is likely to draw a map before 50 y [k] s [k] and x [k] waveform sequence comparison y [k] s and [k].
Date : 2008-10-13 Size : 28.59kb User : 魏臻
[Other] Marr-edge-detective DL : 0: Marr边缘检测算法的研究，,提出了不等间隔采样和非均匀量化相结合的数字化方法-Marr edge detection algorithm research, interval ranging from the non-uniform sampling and quantization combination of digital methods
Date : 2008-10-13 Size : 484.89kb User : 庄宇飞
[Other] zjf147 DL : 0: 用来产生均匀分布或高斯分布的伪随机数（近似白噪声），它们可具有不同的均值和方差。用REMEZ算法求交错点组。用Cholesky分解求ARMA模型的参数并作谱估计。求MA模型的参数并估计功率谱。用最小方差法估计序列的功率谱。-used to produce uniform or Gaussian distribution of the pseudo-random number (similar to white noise). They may have a different mean and variance. Application of Remez algorithm used for staggered Point Group. Cholesky decomposition used for ARMA model and the parameters estimated for the spectrum. MA for the model parameters and the estimated power spectrum. With MVM sequence of the estimated power spectrum.
Date : 2008-10-13 Size : 5.46kb User : zhoujianfang
[Other] kaermanmubiaogenzong DL : 0: 根据二维空间内目标作匀速直线运动和匀速圆周运动的特点，在建立目标运动模型和观测模型的基础上采用基于交互多模算法（IMM）的卡尔曼滤波器对机动目标进行跟踪。仿真结果表明，该算法不仅能够对匀速直线运动和匀速圆周运动的目标进行跟踪，而且在运动模型发生变化时，滤波误差也比较小。关键词：卡尔曼滤波器；目标跟踪；机动；交互多模（IMM） -two-dimensional space under target for uniform linear motion and uniform circular motion characteristics, the establishment of the target model and observations on the basis of the model based on interactive multi-algorithm (IMM) Kalman Filter right track moving targets. Simulation results show that the method can not only on uniform linear movement and the uniform circular motion of the target tracking, and the campaign model change, the filter error is relatively small. Keywords : Kalman filter; Target tracking; Mobility; Interactive multi-mode (IMM)
Date : 2008-10-13 Size : 58.85kb User : zhangfei
[Other] zizuokalman DL : 1: 卡尔曼在目标跟踪中的应用本文对作匀速运动的二维空中机动目标进行研究，利用交互式多模型方法对雷达目标进行跟踪-target tracking in the application of this uniform motion for the two-dimensional aerial maneuvers goals, use of interactive multi-model approach to tracking radar targets
Date : 2008-10-13 Size : 10.29kb User : zhangfei