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12下载:
本程序用于完成BPSK、QPSK、pi/4QPSK、OQPSK、8PSK、16QAM、32QAM、64QAM和128QAM的调制仿真。并可任意扩展到MPSK和MQAM。程序分成四个部分,fir.m对基带码元序列进行脉冲成型,可选矩形脉冲,升余弦脉冲和平方根升余弦脉冲; modal.m 为主程序,完成岁各种信号的基带星座图映射、脉冲成型和调制;pi4QPSK.m 为pi/4QPSK信号的星座图映射程序;test1.m给出一个简单的频谱显示测试。,This procedure for the com
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1下载:
直接序列扩频的缩写(DS-SS )
二相相移键控(BPSK)
matlab源代码,An acronym for Direct Sequence Spread Spectrum (DS-SS) two-phase phase shift keying (BPSK) matlab source code
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3下载:
GPS信号的BPSK调制以及BOC信号的功率谱的matlab仿真程序,可以将两者结合起来比较学习-GPS signals BPSK and BOC modulation signal of the power spectrum matlab simulation program, you can compare the two to combine learning
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2下载:
BPSK直接序列扩频系统仿真程序,扩频码为64位m序列-BPSK direct sequence spread spectrum system simulation program, spreading code sequence for the 64 m
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2下载:
Matlab 模拟 CDMA 直接扩频。m序列生成矩阵为p(x) = 1 + x^5 + x^7 + x^8 + x^9 + x^13 + x^15。能画出每阶段的时域、频域图。-Matlab simulation of CDMA Direct Spread Spectrum. m sequence generated matrix for p (x) = 1+ x ^ 5+ x ^ 7+ x ^ 8+ x ^ 9+ x ^ 13+ x ^ 15. To draw each stage of t
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一个四用户的扩频通信系统,扩频增益为N=16,采用Walsh码进行直接序列扩频,BPSK调制,无线信道为AWGN信道。在接收端进行解扩,解调,判决,通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。-A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequence Spread Spectrum, BPSK modulation, AWGN
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设计一个四用户的扩频通信系统,扩频增益为N=16,采用Walsh码进行直接序列扩频,BPSK调制,无线信道为AWGN信道。在接收端进行解扩,解调,判决,通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。-Designed a four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequence Spread Spectrum, BPSK modul
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2下载:
在MATLAB环境下实现了CDMA通信系统仿真,程序流程为:随机序列产生--WALSH码扩频--BPSK调制--加入(和不加入)高斯白噪声--BPSK解调--WALSH码解扩,对过程波形进行了存储,对加噪与不加噪情况下的解码结果进行了对比,并绘制出信噪比与误码率关系图。-In the MATLAB environment to achieve a CDMA communication system simulation, the program flow as follows: random s
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认知无线电BPSK信号的循环平稳检测的性能仿真 包含信号循环谱图-Cognitive radio spectrum cyclostationary detection performance cycle
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基于matlab的扩频通信设计,walsh码扩频,Bpsk调制-Matlab-based spread spectrum communication design, walsh code spread spectrum, Bpsk modulation
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扩频系统中的直接扩频产生的信号,m序列码的产生-Direct spread spectrum signal generated, m sequence code generated
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1下载:
二相相移键控(BPSK)调制解调过程的MATLAB仿真实现。ASK、FSK、PSK这三种数字调制方式在抗干扰噪声能力和信号频谱利用率等方面,以相干PSK的性能最好,目前已在中、高速传输数据时得到广泛应用。-Binary phase shift keying (BPSK) modulation and demodulation process, MATLAB Simulation. ASK, FSK, PSK modulation in the three digital noise interf
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采用直接序列扩频技术的BPSK接收机matlAB仿真,内含说明。-This is a code for simulation of BPSK receiver using Direct Sequence Spread Spectrum. The performnace is evaluated in presence of AWGN and Rayleigh fading.Jakes Model has been used to obtained coefficients for raylei
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用matlab编写的bpsk信号的循环谱估计程序,适合给初学者参考。-BPSK signal s Matlab computer program written in cyclic spectrum,for new learners reference.
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2下载:
matlab仿真程序
产生一个长为1000的二进制随机序列,“0”的概率为0.8,”1”的概率为0.2;
对上述数据进行归零AMI编码,脉冲宽度为符号宽度的50 ,波形采样率为符号率的8倍,画出前20个符
号对应的波形(同时给出前20位信源序列)
改用HDB3码,画出前20个符号对应的波形
改用密勒码,画出前20个符号对应的波形
分别对上述1000个符号的波形进行功率谱估计,画出功率谱
改变信源“0”的概率,观察AMI码的功率谱变化情况-Produce random
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本代码是宽带DOA估计matlab代码,信号源是BPSK信号,采用一般线性阵列或均匀线性阵列接收,共涉及频谱已知和未知两种情况。并且各部分均单独编写了m函数。-This code is used to conduct DOA of a broadband signal. The signal source is BPSK, with a general linear array or uniform linear array. Each of these cases
includes two
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3下载:
设定码元速率、载波频率、采样速率、码元个数等,先仿真bpsk信号,然后对其求循环谱。采用频域平滑的方法。(Set the symbol rate, carrier frequency, sampling rate, number of symbols and so on, first simulate the BPSK signal, and then calculate the cyclic spectrum. The frequency domain smoothing method is
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