| 摘要 |
<p>PCT No. PCT/NO89/00115 Sec. 371 Date Apr. 24, 1991 Sec. 102(e) Date Apr. 24, 1991 PCT Filed Nov. 6, 1989 PCT Pub. No. WO90/05417 PCT Pub. Date May 17, 1990.A method and apparatus for converting electronic signals from frequency-division multiplex format into time-division multiplex format while retaining substantially all phase and amplitude information of a band-limited continuous signal. A continuous frequency-division multiplex format signal is multiplied with a first chirp signal having a periodic sequence with period T, a constant amplitude and a phase variation having a non-zero constant amplitude second derivative of said phase variation with respect to time mu . A convolution is then performed of said multiplied signal with a convolution filter having an impulse response defined by h0(t)xe j( omega 0t- mu t2/2) wherein h0(t) is a function having finite delay greater than T, and omega 0 is a constant.</p> |
