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Contribute at least one answer each month for 3 consecutive months
Awarded to Owen on 20 Jul 2017
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Awarded to Owen on 20 Jul 2017
Feeds
Domanda
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...
oltre 8 anni fa | 0 risposte | 0
0
risposteDomanda
sample time not compatible
Hi, in this link <http://www.mathworks.com/matlabcentral/fileexchange/722-bluetooth-modulation-and-frequency-hopping> a Simul...
oltre 8 anni fa | 0 risposte | 0
0
risposteDomanda
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...
quasi 9 anni fa | 0 risposte | 0
0
risposteDomanda
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...
quasi 9 anni fa | 0 risposte | 0
0
risposteJPEG file into an array
I tried fread() and it gives the 18.6KB size. Owen
oltre 9 anni fa | 0
Domanda
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...
oltre 9 anni fa | 1 risposta | 0
1
rispostaJPEG 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...
oltre 9 anni fa | 0
Domanda
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
oltre 9 anni fa | 3 risposte | 0
3
risposteDomanda
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...
quasi 10 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
quasi 10 anni fa | 3 risposte | 0
3
risposteDomanda
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...
circa 10 anni fa | 0 risposte | 0
0
risposteDomanda
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...
circa 10 anni fa | 0 risposte | 0
0
risposteDomanda
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
circa 10 anni fa | 0 risposte | 0
0
risposteDomanda
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 ...
circa 10 anni fa | 0 risposte | 0
0
risposteDomanda
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...
oltre 10 anni fa | 1 risposta | 0
1
rispostaDomanda
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 -...
oltre 10 anni fa | 1 risposta | 0
1
rispostataking out elements from a series of integers
What about with Simulink? Senmeis
oltre 10 anni fa | 0
Domanda
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...
oltre 10 anni fa | 2 risposte | 0
2
risposteDomanda
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...
oltre 10 anni fa | 0 risposte | 0
0
risposteDomanda
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 ...
oltre 10 anni fa | 0 risposte | 0
0
risposteDomanda
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 ...
quasi 11 anni fa | 0 risposte | 0
0
risposteDomanda
question regarding an passband example
Hi, By typing "commpassbandmod" in the command console you can open a passband simulation example model. If the parameter...
circa 11 anni fa | 0 risposte | 0
0
risposteDomanda
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...
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
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 ...
oltre 11 anni fa | 0 risposte | 0
0
risposteDomanda
"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....
oltre 11 anni fa | 0 risposte | 0
0
risposteDomanda
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...
oltre 11 anni fa | 0 risposte | 0
0
risposteDomanda
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...
oltre 11 anni fa | 0 risposte | 0
0
risposteDomanda
solver for digital systems
Hi, is it better to set Solver to "discrete (no continuous states)" for digital systems? Thanks Senmeis
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
"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)"...
oltre 11 anni fa | 0 risposte | 0
0
risposteDomanda
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...
oltre 11 anni fa | 1 risposta | 0
1
risposta
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