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[matlab] 能量检测Rayleigh衰落信道仿真 DL : 3: 在给定SNR下，先产生一个原始信号（单音或者BPSK基带信号）然后通过不同信道，如AWGN，Rayleigh等等，再根据给定的平均SNR叠加高斯噪声，再进行能量检测，对叠加信号求功率累积并对噪声功率进行归一化，然后由Pf反推一个检测门限Th，将累积功率与门限比较，求超过门限次数即为检测概率。由此进行Monte-Carlo仿真画出Pm-Pf曲线，并与理论曲线进行比较。
Date : 2011-04-15 Size : 4.75kb User : m518620m@126.com
[matlab] Energy—dection DL : 0: 仿真思路：以URKOWITZ 在1967年发表的能量检测文章以及Digham 2003、Ghasemi 2007发表的一系列文章为参考， %在AWGN信道中，给定SNR下，先产生一个原始信号（单音或者BPSK基带信号），然后叠加高斯噪声，再进行能量检测， %对叠加信号求功率累积并对噪声功率进行归一化，然后由Pf反推一个检测门限Th，将归一化累积功率与门限比较，求超过门限次数即为检测概率。 %由此进行Monte-Carlo仿真画出Pm-Pf曲线，并与Digham给出的ROC理论曲线进行比较
Date : 2011-05-04 Size : 1.2mb User : jerry916
[Communication] bpsk_dsss DL : 0: There are two files in the zip folder. bpsk_spread.m and jakesmodel.m Steps for simulation: 1] Run jakesmodel.m first 2] Then run bpsk_spread.m . 3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented 4] The resulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file. 6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable. 7] Run the simulation. To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray >>semilogy([1:8],BER_awgn(1:8), g* ) hold on semilogy([1:8],BER_ray(1:8), -.b* ) hold on grid on -There are two zip files in the folder. Bpsk_ spread.m and jakesmodel.m Steps for simulatio n : 1] Run jakesmodel.m first 2] Then run bpsk_spre ad.m. 3] Note that during the first run bpsk_spr ead.m has no Rayleigh fading.This is because th e corresponding code has been commented 4] The r esulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_ spread.m file. 6] Same time comment BER_awgn (l 112 produced mostly in developed areas) and uncomment BER_ray variable. 7] Run the simulation. To compare the perfromances of the receiver using DSSS plot and the BER_awgn BE R_ray
Date : 2025-07-03 Size : 3kb User : 朱振希
[Books] zdkll DL : 0: 本课件是以胡寿松主编《自动控制原理》第四版科学出版社为教材，本人多年教学经验的积累，有很高的参考实用价值，属于自动控制理论的精品教学课件。-Courseware is the editor-in-chief Hu Shousong "Automatic Control Theory" for the 4th edition of the scientific publishing materials, my many years of teaching experience accumulation, a high reference value, automatic control theory is the quality courseware.
Date : 2025-07-03 Size : 4.16mb User : 赵虎
[Internet-Network] CP0402 DL : 0: PAM-TH的调制器和PAM-TH的传输器，是研究超宽带的基础-PAM-TH modulation and transmission of PAM-TH, and is to study the basis of ultra-wideband
Date : 2025-07-03 Size : 2kb User : 菜鸟
[Software Engineering] UWB-TH DL : 0: 利用matlab仿真，实现跳时超宽带无线电的性能分析-Use of matlab simulation, to achieve time-hopping ultra-wideband radio performance analysis
Date : 2025-07-03 Size : 259kb User : liguiwu
[Other] uwb DL : 0: 两种生成uwb信号的方法PPM-TH,PAM-DS。-Two methods of generating signals of uwb.One is PPM-TH, the other is PAM-DS。
Date : 2025-07-03 Size : 8kb User : 张秀宁
[matlab] TH_BPSK_UWB_Transmitter DL : 0: TH BPSK UWB Transmitter
Date : 2025-07-03 Size : 2kb User : OLMACODZ