| 摘要 |
Non-recursive half-band filter, which makes it possible to convert a complex input signal Sr1(kT) + jSi1(kT) into a complex output signal S(kT) = Sr(k) + jS1(k), by modulating its pulse response to the complex carrier of a frequency equal to 1/4 or 3/4 of the sampling frequency fA, the null phase of this frequency being an integral multiple of pi /2, and the sampling rate being kept constant. |
