Here you copy a floating-point value, resulting from the real component of the inverse Fourier transform, into an unsigned 8-bit integer (I presume from what I can see in the code). If one of these values is slightly above 255, which can happen with an "ideal" low-pass filter because...
ideal low-pass filterGaussian decay in time and frequency domainsuncertainty productThe two-parameter family of Hermite Distributed Approximating Func-tionals (HDAFs) is shown to possess all properties that are essential require-ments in filter design. When properly scaled, HDAFs provide an ...
array271will transform light that is detected at each pixel into an analog signal and pass the analog signal for each pixel of the array271to the analogy processing circuitry272. The analog processing circuitry272will filter and amplify the analog signals to create amplified signals, which are ...
According to the previous analysis, it is found that each sub-beam is equivalent to a band-pass filter whose transmission function is 𝐻𝑖(𝑓𝑎)Hifa. The sub-beam Doppler bandwidth is 1/𝑁𝑎1/Na of that of the total transmitting beam. Thus, each sub-beam’s echo can be sampl...