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SAR_filter
论文分析了合成孔径雷达图像迭代滤波处理的效果及其问题，结合统计滤波方法和小波分析方法，提出了一种基于细节补偿的MAP迭代滤波算法。实验结果表明，新的迭代滤波算法较好地解决了去噪和细节保留之间的矛盾，而且算法稳定，收敛很快。(This paper analyzes the iterative synthetic aperture radar image filtering effect and its problems, combined with statistical filtering methods and wavelet analysis method, details of compensation, a MAP based iterative filtering algorithm. Experimental results show that the new iterative filtering algorithm can solve the denoising and detail preservation conflicts between, and the algorithm is stable and fast convergence.)
- 2010-11-13 00:32:02下载
- 积分：1
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lvboqisheji
设计一个IIR数字低通滤波器， 逼近一组模拟滤波器的指标参数（通带截止频率Wp=2*pi*2000rad/s,阻带边界频率Ws=2*pi*3000rad/s,通带波纹 Rp=3db, 阻带衰减Rs=15db, 采样频率f=10000Hz）； 分别用脉冲响应不变法和双线性变换法实现设计，列出传递函数并描绘模拟和数字滤波器的幅频和相频响应曲线。用上述设计滤波器完成几组给定信号的滤波，证明滤波器的有效性和滤波范围限制.(Design a IIR digital low-pass filter, approaching a group of analog filters indicator parameters (pass-band cut-off frequency Wp = 2* pi* 2000rad/s, stop-band edge frequency Ws = 2* pi* 3000rad/s, pass-band ripple Rp = 3db, stop-band attenuation Rs = 15db, the sampling frequency f = 10000Hz) were used to change the impulse response method and bilinear transformation method for design, list and describe the transfer function of analog and digital filter amplitude-frequency and phase-frequency response curve. A filter was designed with the completion of the above-mentioned groups of a given signal filtering, to prove the effectiveness of filters and filter limit)
- 2010-01-10 21:27:12下载
- 积分：1
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Conv_en--Decoder
concolution sunum teknolojı lerı
- 2011-05-15 05:15:59下载
- 积分：1
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HW1_Saman
uniform distribution in hexagon
- 2012-09-29 20:40:40下载
- 积分：1
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调速时无刷直流电机驱动
示范的 AC7 无刷直流电机驱动，在速度调节。
电路说明： 该电路使用方法 ™ 库的 AC7 块。它与 3 马力电动机制动斩波器模型无刷直流电动机驱动。
- 2022-05-19 17:35:24下载
- 积分：1
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tezhenglian
本文对特征脸的识别进行了详细的论述，其基本步骤详尽(In this paper, the face recognition feature a detailed exposition of the basic steps in detail)
- 2010-06-07 12:41:29下载
- 积分：1
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ber_wity_frequencyoffset
OFDM系统中，归一化频偏频偏和误码率的关系曲线(OFDM systems, frequency offset and bit error rate curve)
- 2010-07-07 14:59:48下载
- 积分：1
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BP
说明： 用matlab实现的BP神经自校正系统模型(Using matlab to achieve self-tuning of the BP neural system model)
- 2009-06-29 19:07:37下载
- 积分：1
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main
不错的粒子群程序，对初学者很有帮助，有完整的注释，通过了测试，可以很好的运行，希望对初学者有帮助。(Good PSO program, useful for beginners, complete notes, passed the test can be a good run, and I hope to help beginners.)
- 2013-12-09 16:55:59下载
- 积分：1
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Doppler-spectrum-of-radio-channel
1. 关于无线信道的多普勒谱，请回答以下问题：
(1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请清楚的描述产生混叠的各种原因；
(2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理；
(3) 请用S-function产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。
(Doppler spectrum of radio channel 1, please answer the following questions
(1) In some wireless channel, radio channel Doppler shift will cause the output signal aliasing. Please clearly describe aliasing for various reasons )
- 2021-01-24 17:38:43下载
- 积分：1
