upsampler, downsampled

11:15 Jul 2, 2018
English to Serbian translations [PRO]
Tech/Engineering - Electronics / Elect Eng / smart antenna systems
English term or phrase: upsampler, downsampled
In order to reduce the aberrations due to delay quantization, an
interpolation method in a beamforming can be introduced between
the samples of the antenna signals. Figure 5.4 shows a block diagram
of an interpolation beamforming. Each antenna’s output is passed
through an upsampler, which adds M−1 zeros between the samples,
and a lowpass FIR interpolation filter with a cutoff frequency at
pi/M . The output signal of the lowpass FIR interpolation filter with
a higher sampling rate is then subjected to the delay and shading
to form a beamforming. The output signal of the beamforming can
be downsampled by a factor of M to obtain the signal with original
sampling rate.
Svetomir Mijovic
Local time: 22:56


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