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Owning Class: filter design
Requires: MathScript RT Module
b = fir_rcos(n, fc, bw)
b = fir_rcos(n, fc, bw, fs)
b = fir_rcos(n, fc, bw, fs, type)
b = fir_rcos(n, fc, bw, fs, type, d)
b = fir_rcos(n, fc, bw, fs, type, d, w)
b = fir_rcos(n, fc, r, fs, s)
b = fir_rcos(n, fc, r, fs, s, type)
b = fir_rcos(n, fc, r, fs, s, type, d)
b = fir_rcos(n, fc, r, fs, s, type, d, w)
[b, a] = fir_rcos(n, fc, bw)
[b, a] = fir_rcos(n, fc, bw, fs)
[b, a] = fir_rcos(n, fc, bw, fs, type)
[b, a] = fir_rcos(n, fc, bw, fs, type, d)
[b, a] = fir_rcos(n, fc, bw, fs, type, d, w)
[b, a] = fir_rcos(n, fc, r, fs, s)
[b, a] = fir_rcos(n, fc, r, fs, s, type)
[b, a] = fir_rcos(n, fc, r, fs, s, type, d)
[b, a] = fir_rcos(n, fc, r, fs, s, type, d, w)
Legacy Name: firrcos
Designs a raised cosine FIR filter.
Name | Description | ||||
---|---|---|---|---|---|
n | Specifies the order of the filter. n is a positive integer. | ||||
fc | Specifies the cutoff frequency of the filter. fc must be greater than 0 and less than fs/2. | ||||
bw | Specifies the transition bandwidth. bw must be greater than 0. [fc-bw/2, fc+bw/2] must fall in the range [0, fs/2]. | ||||
fs | Specifies the sampling frequency. fs must be greater than 0. The default is 2. | ||||
type | Specifies the type of filter to design. type is a string that accepts the following values:
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d | Specifies the delay. d is a positive integer. The default is ceil(n/2). | ||||
w | Specifies the window to apply to the filter in order to reduce the ripple in the frequency response. w is a vector with length n + 1. | ||||
r | Specifies the transition bandwidth or the rolloff factor, depending on the value of s. The rolloff factor is equivalent to bw/(2*fc). | ||||
s | Specifies the meaning of r. s is a string that accepts the following values:
|
Name | Description |
---|---|
b | Returns the numerator of the filter under design. b is the forward filter coefficient of order n. b is a real vector. |
a | Returns the denominator of the filter under design. a is the backward filter coefficient of order n. a is always [1]. |
The following table lists the support characteristics of this function.
Supported in the LabVIEW Run-Time Engine | Yes |
Supported on RT targets | Yes |
Suitable for bounded execution times on RT | Not characterized |
fir_rcos(5, 0.5, 0.1, 2, 'sqrt')
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