# Jay

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Question

Number of bits per symbol (m) range in Reed-Solomon coding

I'm playing around with Reed-Solomon codes. In the parameters of rsenc, help shows m represents the "number of bits per symbol" ...

14 dagar ago | 2 answers | 0

### 2

answersQuestion

Update a value in a struct in another function

I have a struct which is initialized by this: function myStruct = defult_config myStruct.myLenth = 1; end myStruct.myLength ...

4 månader ago | 2 answers | 0

### 2

answersQuestion

How do I know how the output of FIR filter were calculated (e.g., each of summands of the FIR)?

For a given set of FIR coefficient b and input data input, I generate FIR output using filter function (e.g., output = filter(b,...

7 månader ago | 0 answers | 0

### 0

answersQuestion

CIC compensation filter design

I have a CIC filter as below: Decimation factor: 20 Differential Delay: 1 Number of sections: 4 I created cicDecim object by...

9 månader ago | 0 answers | 0

### 0

answersQuestion

How to do a Biquad (SOS) filtering

I have the following filters which I want to implement with cascade of multiple second-order sections (SOS). %% Filter_1 h = ...

9 månader ago | 1 answer | 0

### 1

answerQuestion

convert decimal to hex with 3 digit

I just realized that converting -30 to hexadecial by dec2hex(-30) is different from its converting back by hex2dec('E2'). Any su...

10 månader ago | 1 answer | 0

### 1

answerQuestion

The location of decimated sample in CIC Decimator?

In a CIC Decimator, which sample is chosen among others? For example, here is the original input. input = [x1 x2 x3 x4 x5 x6 x7...

10 månader ago | 0 answers | 0

### 0

answersQuestion

The first CIC Decimator output is always zero

It seems that the first CIC Decimator output is always zero and I don't understand its behavior. I generated the input data and...

10 månader ago | 1 answer | 0

### 1

answerQuestion

CIC decimation output is strange (Output word length and negative fractional length)

I'm implementing fixed point CIC decimation filter with following requirements -- Decimation factor: 20 Number of CIC stages: ...

10 månader ago | 1 answer | 0

### 1

answerQuestion

Magnitude response of allpass filter - group-delay equalization of an IIR filter

In iirgrpdelay help page, the following example was provided for a group delay equalization of an IIR filter: [be,ae] = ellip(4...

11 månader ago | 1 answer | 0

### 1

answerQuestion

Converting 4th order IIR filter to SOS (second-order sections)

I've designed 4th order allpass IIR filter using 'iirgrpdelay' and have the numerator and denominator which are 1-by-5 vectors. ...

11 månader ago | 1 answer | 0

### 1

answerCPFSK demodulator performance in MATLAB example with enabling modulation index

This is self-answering - I found the reason why the error rates are strange other than "modulation index" of 0.5. CPFSKDemodulat...

nästan ett år ago | 0

| accepted

Question

CPFSK demodulator performance in MATLAB example with enabling modulation index

I've been checking CPFSK performance against various modulation indices and SNR. MATLAB has nice examples in comm.CPFSKModulat...

ungefär ett år ago | 1 answer | 0

### 1

answerQuestion

Number of filter taps in Gaussian filter design

Hello, I'm desinging a pulse shaping filter where the filter covers a span of 5 inputs symbols and 12 times of input symbol r...

ungefär ett år ago | 1 answer | 0

### 1

answerQuestion

Oversampling factor parameter for fsk modulation with gaussian shaping filter

Hello, I have been playing around with fskmod with gaussdesign (e.g., fsk modulation and filtering with a gaussian shaping filt...

ungefär ett år ago | 1 answer | 0