Community Profile

photo

Owen


Active since 2012

Statistics

  • 3 Month Streak
  • Thankful Level 3

View badges

Content Feed

View by

Question


blocks of spread spectrum
Hi, I have to convert a bitstream of 10 kbps to 100k bps using spread spectrum in Simulink. Which blocks are suitable for thi...

más de 6 años ago | 0 answers | 0

0

answers

Question


sample time not compatible
Hi, in this link <http://www.mathworks.com/matlabcentral/fileexchange/722-bluetooth-modulation-and-frequency-hopping> a Simul...

casi 7 años ago | 0 answers | 0

0

answers

Question


Simulink examples of Adaptive Frequency Hopping
Hi, I am looking for Simulink examples of Adaptive Frequency Hopping which is a closed loop. Can anyone give me a hint? Ow...

casi 7 años ago | 0 answers | 0

0

answers

Question


Selector block before the spectrum scope
Hi, in this example <http://de.mathworks.com/help/comm/examples/bluetooth-frequency-hopping.html?s_tid=srchtitle%20 Bluetooth...

casi 7 años ago | 0 answers | 0

0

answers

Answered
JPEG file into an array
I tried fread() and it gives the 18.6KB size. Owen

más de 7 años ago | 0

Question


send data in frame based mode in Simulink
Hi, How to send 65536 bytes step by step in frame based mode in Simulink? In every frame shall 1024 bytes be sent, so there a...

más de 7 años ago | 1 answer | 0

1

answer

Answered
JPEG file into an array
Thanks. It works, but there is still a problem with size matching. An JPEG file has the following parameters: 18.6KB, 242x379, b...

más de 7 años ago | 0

Question


JPEG file into an array
Hi, is it possible to convert an JPEG file into an array in Matlab? What about the reverse conversion? Owen

más de 7 años ago | 3 answers | 0

3

answers

Question


sample rate of a DUC object
Hi, I’m using the DUC system object to make frequency upconversions: <http://www.mathworks.com/help/dsp/ref/dsp.digitalupconv...

casi 8 años ago | 1 answer | 0

1

answer

Question


where to find memory limit
Hi, I’m using the example code of dsp.DigitalUpConverter System object to make some tests: <http://www.mathworks.com/help/dsp...

casi 8 años ago | 3 answers | 0

3

answers

Question


problems with initial values of Buffer block
Hello, I want to process 5 bytes at every sample time in Simulink, but the input is a bitstream. I have to do some conversion...

alrededor de 8 años ago | 0 answers | 0

0

answers

Question


import 4x1 vectors from Inport block
Hi, I want to import some data (100 numbers) from Workspace into a Simulink model with an Inport Block. The data is genera...

alrededor de 8 años ago | 0 answers | 0

0

answers

Question


sequence output with the Constant block
Hello, is it possible to output the sequence 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 ... With the Constant block? Senmeis

alrededor de 8 años ago | 0 answers | 0

0

answers

Question


sample time from "From Workspace" block
Hello, I connect a From Workspace Block with a To Workspace Block so that the variable in From Workspace can be read into To ...

alrededor de 8 años ago | 0 answers | 0

0

answers

Question


waveform signals collecting in Phased Array System Toolbox
Hi, I want to calculate the signal arriving at an antenna array with the method „collectPlaneWave“ from Phased Array System T...

más de 8 años ago | 1 answer | 0

1

answer

Question


how to solve this matrix equation?
Hello, The product of a 3x5 matrix B and a 5x3 matrix K shall be a unit matrix. B = [0 3 -1 2 1;-4 0 -1 -3 1;0 0 3 -...

más de 8 años ago | 1 answer | 0

1

answer

Answered
taking out elements from a series of integers
What about with Simulink? Senmeis

más de 8 años ago | 0

Question


taking out elements from a series of integers
Hello, I can’t develop the following simple model with Simulink, so please help me with it. A generator creates a series o...

más de 8 años ago | 2 answers | 0

2

answers

Question


synchronization marker for receiver
Hi, In a communication system a marker of 32 bits is used to synchronize the receiver. After these 32 bits, 255 data bytes sh...

casi 9 años ago | 0 answers | 0

0

answers

Question


two issues about the Spectrum Scope block
Hi, Please help me with two issues about the Spectrum Scope block. Is it possible to freeze the scope while simulation so ...

casi 9 años ago | 0 answers | 0

0

answers

Question


power of a modulated waveform
Hi, I must determine the power of a modulated waveform in Simulink. As far as I know this waveform is represented by many ...

alrededor de 9 años ago | 0 answers | 0

0

answers

Question


question regarding an passband example
Hi, By typing "commpassbandmod" in the command console you can open a passband simulation example model. If the parameter...

más de 9 años ago | 0 answers | 0

0

answers

Question


build an OQPSK passband model
Hi, I have to build an OQPSK passband model. Now there are two choices: 1. modem.oqpskmod function (in form of I+jQ) + mul...

más de 9 años ago | 1 answer | 0

1

answer

Question


sample times of a product block
Hi, I have to use the "Product" block as a mixer. Somehow I get this knowledge: The sample times of two inputs must not have ...

más de 9 años ago | 0 answers | 0

0

answers

Question


"Upsampling factor" in "Raised Cosine Transmit Filter" block
Hi, A parameter "Upsampling factor" can be seen in the "Raised Cosine Transmit Filter" block and this one must be at least 2....

más de 9 años ago | 0 answers | 0

0

answers

Question


up conversion problem in Simulink
Hi, I want to up convert a signal with the following structure: The source and a "Sine Wave" block are connected with a "Prod...

más de 9 años ago | 0 answers | 0

0

answers

Question


two questions about soft decision for Viterbi Decoder
Hi, the parameter "Number of soft decision bits" in Viterbi Decoder can be set to 1. Does this equal to hard decision? Are...

más de 9 años ago | 0 answers | 0

0

answers

Question


solver for digital systems
Hi, is it better to set Solver to "discrete (no continuous states)" for digital systems? Thanks Senmeis

más de 9 años ago | 1 answer | 0

1

answer

Question


"Signal to noise ratio" and "Input signal power, referenced to 1 ohm (watts)" in AWGN
Hi, In the AWGN block there are two parameters: "Signal to noise ratio" and "Input signal power, referenced to 1 ohm (watts)"...

más de 9 años ago | 0 answers | 0

0

answers

Question


import variables from Base Workspace into Simulink model
Hi, Is it possible to show the variables in Base Workspace on the Simulink model window automatically after one simulation? M...

más de 9 años ago | 1 answer | 0

1

answer

Load more