淘宝官方店     推荐课程     在线工具     联系方式     关于我们  
　
　

微波射频仿真设计   Ansoft Designer 中文培训教程   |   HFSS视频培训教程套装
　

Agilent ADS 视频培训教程   |   CST微波工作室视频教程   |   AWR Microwave Office
          首页 >> Ansoft Designer >> Ansoft Designer在线帮助文档


Ansoft Designer / Ansys Designer 在线帮助文档：

System Simulator >
System Component Models >
WCDMA Rake Receiver >
   Sample Selection (SAMPSELECT)       

Sample Selection (SAMPSELECT)

 

 


Property

Description

Units

Default

Range/Type

METHOD

Pilot Assisted {0} Perfect {1}

None

0

[0, 1]/Integer

G

Spreading factor

None

32

[2, Inf)/Integer

S

Number of samples per chip

None

4

[1, 128]/Integer

K

Number of slots for block-average power delay estimation integer

None

1

[1, Inf)/Integer

NP

Number of pilot symbols

None

4

[1, Inf)/Integer

ND

Number of data symbols

None

6

[0, Inf)/Integer

N0

Number of the first pilot symbol

None

0

[0, Inf)/Integer

DMAX

Maximum delay for multi-path (samples)

None

16

[0, Inf)/Integer

S0

Perfect sample position

None

0

[0, 127]/Integer

RIN1

Input1 impedance

Ohm

Inf

(0, Inf]/Real

RIN2

Input2 impedance

Ohm

Inf

(0, Inf]/Real

RIN3

Input3 impedance

Ohm

Inf

(0, Inf]/Real

ROUT

Output impedance

Ohm

0

[0, Inf)/Real

Ports

Input1

Received signal on complex envelope format (complex)

Input2

Spreading code (complex)

Input3

Pilot symbols (complex)

Output

Optimum sample position (integer)

 

Limits

[spacer]

 

[spacer]

 

[spacer]

 

Notes

1. The sample selection model can be used to determine the optimum sample position for each slot in DS/CDMA systems. If Method is set to Pilot Assisted {0}, the optimum sample position is estimated using the corresponding spreading code and pilot symbols. For detailed algorithm, please refer to the matched filter model. If Method is set to Perfect {1}, the optimum sample position is the value of the parameter S0.

Netlist Form

SAMPSELECT:NAME n1 n2 n3 n4 [METHOD=val] G=val [S=val] [K=val] NP=val ND=val [N0=val]+ [DMAX=val] [S0=val] [RIN1=val] [RIN2=val] [RIN3=val] [ROUT=val]

Netlist Example

SAMPSELECT:1 1 2 3 4 METHOD = 0 G = 32 S = 4 DMAX = 20 NP = 4 ND = 16 S0 = 1

References:

1. J. G. Proakis, Digital Communications, McGraw-Hill, 2001.

2. A. J. Viterbi, CDMA: Principles of Spread Spectrum Communication, Wesley Publishing Company, 1995.

3. K. Higuchi, H. Andoh, et al, “Experimental evaluation of combined effect of coherent RAKE combining and SIR-based fast transmit power control for reverse link of DS-CDMA mobile radio,” IEEE Journal on Selected Areas in Communications, vol. 18, No.8, pp.1526-1535, Aug. 2000.

 



HFSS视频教学培训教程 ADS2011视频培训教程 CST微波工作室教程 Ansoft Designer 教程

                HFSS视频教程                                      ADS视频教程                               CST视频教程                           Ansoft Designer 中文教程


　

      Copyright © 2006 - 2013   微波EDA网, All Rights Reserved    业务联系：mweda@163.com