how to convert z parameter to s parameter?

14 ビュー (過去 30 日間)
Venkatkumar M
Venkatkumar M 2022 年 12 月 20 日
コメント済み: Bora Eryilmaz 2022 年 12 月 20 日
Hi,
I have two set of data.
One data has frequency, Z(ohm), theta.(R1Z.csv)
other data set has frequency, Z(db), theta (R1.txt)
I need to convert this two set of data from Z paramters to S parameter.
Could any one please help me to resolve the issue?

回答 (1 件)

Bora Eryilmaz
Bora Eryilmaz 2022 年 12 月 20 日
編集済み: Bora Eryilmaz 2022 年 12 月 20 日
Depending on which way you want to go:
% Ohm to dB
Z = 4.17;
ZdB = 20 * log10(Z)
ZdB = 12.4027
% dB to ohm
ZdB = 12.39;
Z = 10^(ZdB / 20)
Z = 4.1639
I am not sure what you mean by S parameter, though.
  4 件のコメント
Venkatkumar M
Venkatkumar M 2022 年 12 月 20 日
Okay is there a way to convert available data to to complex form?
Bora Eryilmaz
Bora Eryilmaz 2022 年 12 月 20 日
Looks like to have magnitudes and angles as your data:
(1.23903195326879e+001dB,-8.89777753697489e+001°)
I think the right transformation to a complex format would be the (r,theta) to (x,y) transformation:
ZdB = 1.23903195326879e+001; % In dB
Z = 10^(ZdB / 20)
Z = 4.1641
thetaDeg = -8.89777753697489e+001; % In degrees
thetaRad = thetaDeg * pi / 180 % In radians
thetaRad = -1.5530
z = Z * (cos(thetaRad) + 1i*sin(thetaRad))
z = 0.0743 - 4.1634i
s = z2s(z, 1)
s = 0.8838 - 0.4504i
I don't know much about z2s transformations, so please double check if the last line gives you what you want.

サインインしてコメントする。

カテゴリ

Help Center および File ExchangeSimulink Coder についてさらに検索

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by