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Ansoft Designer / Ansys Designer 在线帮助文档：

System Simulator >
System Component Models >
Modulators >
   Edge Modulator (EDGEMOD)       

Edge Modulator (EDGEMOD)

 

 


Property

Description

Units

Default

Range

RIN

Input impedance

Ohm

Inf

(0, Inf]

ROUT1

Output impedance

Ohm

0

[0, Inf)

ROUT2

Output impedance

Ohm

0

[0, Inf)

Ports

Input

Input signal (complex)

Output1

Output of AM modulator (complex)

Output2

Output of AM modulator (complex)

 

Notes

1. This model converts each three input bits into a pair of in-phase and quadrature output signals based on the EDGE 8PSK modulation. The in-phase and quadrature output values at time index n are calculated using equations


and


respectively; where n is the total number of received symbols. The EDGE 8PSK modulation uses the following mapping of input-bit triplets onto each phase qn:



,,,,,,,.
Where qn, offset is the additional phase shift at the time index n, equal to n x 3p/8.

Form

EDGEMOD:Name n1 n2 n3 [Rin=val], [Rout1=val], [Rout2=val]

Example

EDGEMOD:1 1 2 3

References

1. GSM 05.04 (i.e., ETSI EN 300 959): “Digital cellular telecommuneications system (Phase 2+); Modulation”



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