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2
说明: 2. 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Simulink工具编写代码(S-Function方式),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。
(On the wireless channel of the Doppler spectrum, please answer the following questions: (1) In some radio channels, the Doppler frequency shift will cause the output signal of the wireless channel aliasing. Please describe the aliasing produced a variety of reasons (2) wireless channel in the Doppler spectrum has a classical spectrum (classic spectrum), please explain the mechanism of produce such spectral shape (3), please use the Simulink tool to write code ( S-Function mode), resulting in a single-path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h. And requested the answer: that they used computer-generated classical spectrum is the right possible way.)
- 2009-11-08 15:50:50下载
- 积分:1
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OPTISYSTEM+MATLAB
optisystem与MATLAB之间的联合编程(the link of optisystem and matlab)
- 2021-03-29 11:09:11下载
- 积分:1
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ofdm_channel_estimation
说明: ofdm qpsk 添加循环前缀 信道估计 补偿与均衡 信号星座图(OFDM QPSK add cyclic prefix channel estimation compensation and equalization signal constellation)
- 2019-06-11 10:57:40下载
- 积分:1
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GB18352_3_2005
车载诊断仪,在线OBD,ECU通信协议技术规范,是诊断仪,ECU开发者必备文档
(Car diagnostic online the OBD ECU communication protocol technical specifications, diagnostic ECU developers required documentation)
- 2012-10-16 00:30:52下载
- 积分:1
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有限差分法求电场电势
用有限差分法求电场电势分布,金属盒子接地,电位是0,中间三分之一处有电位是1的长方体,求解其电场电势分布(The electric potential distribution of the electric field is calculated by the finite difference method. The metal box is grounded, the potential is 0, and the 1/3 of the rectangular bodies with the potential is 1, and the electric potential distribution of the electric field is solved.)
- 2018-04-07 22:30:51下载
- 积分:1
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Hilbert_text1
希尔伯特变换测试,使用希尔伯特变换对信号处理,相位偏移90°(The Hilbert transform test uses Hilbert transform to process the signal with a phase shift of 90 degrees)
- 2020-12-29 18:19:01下载
- 积分:1
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radar_matlab2018
说明: 实现雷达信号处理仿真,LFMMTIMTD(radar signal processing,including MTI,MTD,LFM signal)
- 2020-10-17 00:57:28下载
- 积分:1
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DRM外辐射源雷达杂波抑制
DRM 外辐射源雷达的杂波抑制算法代码,LMS RLS ECA 有问题。(The code of clutter suppression algorithm for DRM external emitter radar has some problems with LMS RLS ECA.)
- 2020-12-23 17:49:06下载
- 积分:1
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QPSKwithmatlabcode
QPSK调制解调程序仿真程序,非常有参考价值(QPSK modulation and demodulation process simulation program, very useful)
- 2008-08-21 22:59:53下载
- 积分:1
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COM
COM技术内幕,com这方面的技术资料,找了很久··希望对大家有所帮助吧··(COM technology insider com, this technical information, looking for a long time we hope to help)
- 2012-06-24 00:06:25下载
- 积分:1