plotResponse(response,X)
plots the range response of a dechirped input signal, X, from
the phased.RangeAngleResponse object,
response. This syntax applies when you set the
RangeMethod property to 'FFT' and the
DechirpInput property to false.
plotResponse(response,X,XREF)
plots the range response X, after performing a dechirp
operation using the reference signal, XREF. This syntax applies
when you set the RangeMethod property to
'FFT' and the DechirpInput property to
true.
plotResponse(response,X,COEFF)
plots the range response of X after match filtering using the
match filter coefficients, coeff. This syntax applies when you
set the RangeMethod property to 'Matched
filter'.
plotResponse(___,'Unit',unit)
plots the response in the units specified by units.
Calculate the range-angle response from a pulsed radar transmitting a rectangular waveform using the matched filter approach. The signal includes three target returns. Two are approximately 2000 m away and the third is approximately 3500 m away. In addition, two targets are stationary relative to the radar while the third is moving away from the radar at approximately 100 m/s. The signals arrive at an 8-element uniform linear array.
response — Range-angle response object phased.RangeAngleResponse
System object™
Range-angle response object, specified as a
phased.RangeAngleResponse
System object.
X — Input data complex-valued K-by-N
matrix
Input data, specified as a complex-valued
K-by-N matrix. The contents of the
data cube depend on the type of range-angle processing specified by the
different syntaxes. K always specifies the number of
fast-time samples and N is always the number of channels,
either array elements or beams.
K is the number of fast-time or range
samples.
N is the number of independent spatial
channels such as sensors or directions.
The size of the first dimension of the input matrix can vary to
simulate a changing signal length. A size change can occur, for example, in the case of a pulse
waveform with variable pulse repetition frequency.
XREF — Reference signal used for dechirping complex-valued K-by-1 column vector
Reference signal used for dechirping, specified as a complex-valued
K-by-1 column vector. The number of rows must equal
the length of the fast-time dimension of X.
Dependencies
To enable this input argument, set the value of
RangeMethod to 'FFT' and
DechirpInput to true.
Matched filter coefficients, specified as a complex-valued
P-by-1 column vector. P must be
less than or equal to K. K is the
number of fast-time or range sample.
Dependencies
To enable this input argument, set the value of
RangeMethod to 'Matched
filter'.
Data Types: double Complex Number Support: Yes
unit — Plot units 'db' (default) | 'mag' | 'pow'
Plot units, specified as 'db',
'mag', or 'pow'. who
'db' – plot the response power in
dB.
'mag' – plot the magnitude of the
response.
'pow' – plot the response power.
Example: 'mag'
Data Types: char | string
Version History
Introduced in R2018b
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