文档介绍：通信原理软件实验
2PSK/PCM调制与解调
组别:
姓名:
学号:
通信工程学院1301051班
三、实验简明原理
（一）2PSK
在2PSK中，通常用初始相位0和兀分别表示二进制“1”和“0”。因此，2PSK
3 Hz
4
Adder: Non Parametric
Inputs from t25p0 t5p0
Outputs to 3 23
Max Rate = 560e+3 Hz
5
Source: Gauss Noise
Std Dev = 0 v
Mean = 0 v
Max Rate = 560e+3 Hz
3
Operator: Linear Sys
Butterworth Bandpass HR
3 Poles
Low Fc 二 12e+3 Hz
Hi Fc 二 36e+3 Hz
Quant Bits = None
Init Cndtn = Transient
DSP Mode Disabled
Max Rate = 560e+3 Hz
6
Multiplier: Non Parametric
Inputs from tl5p0 t3p0
Outputs to 8 24
Max Rate = 560e+3 Hz
8
Operator: Linear Sys
Butterworth Lowpass HR
3 Poles
Fc = 12e+3 Hz
Quant Bits = None
Init Cndtn = Transient
DSP Mode Disabled
Max Rate = 560e+3 Hz
Aperture Jitter = 0 sec Max Rate = 280e+3 Hz
10
Operator: Delay
Non-Interpolating
Delay = 0 sec
=0. 0 smp
Output 0 二 Delay t9
Output 1 = Delay - dT
Max Rate (Port 0) = 560e+3 Hz
9
Operator: Sampler
Interpolating
Rate = 120e+3 Hz
Aperture = 0 sec
Aperture Jitter = 0 sec Max Rate = 120e+3 Hz
（二）PCM
1、系统模型
2、图符模块参数
编号
库/名称
参数
0
Source: Sinusoid
Amp = 2 v
Freq = 900 Hz
Phase = 0 deg
Output 0 = Sine t3
Output 1 = Cosine
Max Rate (Port 0)二 300e+3 Hz
1
Source: Sinusoid
Amp = 2 v
Freq = 300 Hz
Phase 二 0 deg
Output 0 二 Sine t3
Output 1 = Cosine
Max Rate (Port 0) = 300e+3 Hz
2
Source: Sinusoid
Amp = 2 v
Freq = 600 Hz
Phase 二 0 deg
Output 0 = Sine t3
Output 1 = Cosine
Max Rate (Port 0) = 300e+3 Hz
3
Adder: Non Parametric
Inputs from tOpO tlpO t2p0
Outputs to 4 6
Max Rate = 300e+3 Hz
6
Comm: Compander
A~Law
Max Input = +5
Max Rate = 300e+3 Hz
8
Logic: ADC
Two, s Complement Gate Delay = 0 sec Threshold 二 500e~3 v True Output = 1 v False Output = 0 v No. Bits 二 8 Min Input = -5 v Max Input = 5 v Rise Time 二 0 sec Analog = t6 Output 0 Clock = tl4 Output 0
9
Logic: DAC
Two, s Complement
Gate Delay = 0 sec
Threshold 二 500e~3 v
No. Bits 二 8
Min Output = -5 v
Max Output = 5 v
D~0 = t