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Dear klystron,
Thank you very much for your suggestion.
Actually I have tried moving average, after that a similar signal pattern is generated. however, with unknown threshold, I still cannot identify the 'spike' or 'peak'. please see attachment. in the figure, blue curve is original signal...
Dear All,
It seems to be a 'weak' problem, but it really troubles me couple of days.
My problem is, I got some sets of real-time data from sensor, please see the attachment. Suppose I don't know the so-called 'threshold' value highlighted by red box, how to identify the 'spike' highlighted by...
Dear All,
I am trying to calculate EVM of RF component in UMTS/LTE (version 10.1.0) system. The general requirement for the software is:
(1) can provide ready UMTS/LTE library
(2) can input RF component in the format of s-parameter
(3) cheaper, better be free.
Have asked Agilent and Steepest...
Hi All,
I just made a comparison summary about various simulators. Please see attachment for details.
As my comparison is all based on paper, all your corrections, comments, supplements or other inputs are welcome. many thanks in advance.
best regards,
tenderne
Hi 'leo-o2', thank you so much for your reply. Have you experienced other simulators? what's your comments about their performance, e.g. speed, accuracy, versatility and etc? any comments are welcome. thanks.
best regards,
tenderne
Dear All:
I am new in using simulator for power electronics design. have found a lot of candidates after google, inculding ADS, simulink, Multiphysics, PowerFactory, SIMPOWER, SAber, SIMetrix, Psim, Pspice, LTspice, really dazzled.
Basically I just want to know their performance comparison in...
Hi ksugahar,
thank you very much for your reply.
but I don't understand, do you mean that Matlab can handling converting [Y] to [S] with non-grounded output port? would you please provide more details? thanks a lot.
best regards,
tenderne
t-matrix s-matrix conversion
Hi All,
I got a big [Y] matrix in hand, say the dimension is 104*104 ports. Now I only want to calculate the 3-port [S] matrix, the information of analysis is
port_in = [101,102,103]
port_out = [0,0,104]
z0 = [50,50,100]
the special point here is...
importance of length in trasnmission line
Hi All,
I got some confusion about the transimission line,
(1) what is the difference/relationship between 'relative permittivity' and 'effective permittivity'?
(2) is 'permittivity' same as 'dielectric constant'?
(3) what is 'geometry length' and...
hi darcyrandall2004,
thank you so much for your reply, I really appreciate your kind help and patiences in answering my rookie questions. thank you very much again. God bless you.
regards,
tenderne
Many thanks for all of your reply.
I don't intend to use any circuit simulator, actually my task is to develop a circuit simulator. size of the circuit is unknown, actually. :|
dear 'darcyrandall2004', would you please recommend some fundamental text books or references about RF circuit...
rf circuit simulation
hi all,
I got a basic question about RF circuit simulation, kindly give me some suggestion or just list some useful references. thanks a lot in advance.
suppose my circuit includes several parts, each part is represented by frquency domain [Y] matrix values. These parts...
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