數(shù)字基帶傳輸系統(tǒng)的MATLAB仿真實(shí)現(xiàn)
function [sampl,re_sampl]=system_1(A,F,P,D,snr,m,N)
輸入變量A ,F,P分別為輸入信號(hào)的幅度、頻率和相位，D為量化電平數(shù)，snr
為信道信噪比，N為D/A轉(zhuǎn)換時(shí)的內(nèi)插點(diǎn)數(shù)；輸出變量sampl為抽樣后的輸入
信號(hào)，re_sampl為恢復(fù)出的輸入信號(hào)。
數(shù)字基帶傳輸系統(tǒng)的MATLAB仿真實(shí)現(xiàn)
[sampl,quant,pcm]=a_d_1(A,F,P,D)
[changed_ami]=signal_encod_1(pcm)
[ami_after_channel]=channel_1(changed_ami,snr)
[adjudged_ami]=adjudg_1(ami_after_channel,m)
re_pcm=signal_decod_1(adjudged_ami)
[re_voltag,re_sampl,re_sampl1]=d_a_1(re_pcm,sampl,D,N)
標(biāo)簽：
function
re_sampl
MATLAB
system
上傳時(shí)間：
2017-04-21
上傳用戶：tzl1975
Generate Possion Dis.
step1:Generate a random number between [0,1]
step2:Let u=F(x)=1-[(1/e)x]
step3:Slove x=1/F(u)
step4:Repeat Step1~Step3 by using different u,you can get x1,x2,x3,...,xn
step5:If the first packet was generated at time [0], than the
second packet will be generated at time [0+x1],The third packet will be generated at time [0+x1+x2],
and so on ….
Random-number generation
1.static method random from class Math
-Returns doubles in the range 0.0 <= x < 1.0
2.class Random from package java.util
-Can produce pseudorandom boolean, byte, float, double, int, long and Gaussian values
-Is seeded with the current time of day to generate different sequences of numbers each time the program executes
標(biāo)簽：
Generate
Possion
between
random
上傳時(shí)間：
2017-05-25
上傳用戶：bibirnovis
