共 5 条
[1]
Atkinson P., 1982, DOPPLER ULTRASOUND I
[3]
LLOYD AG, 1976, ELECTRON DESIGN, V19, P90
[4]
THE PHASE-SHIFT METHOD OF SINGLE-SIDEBAND SIGNAL GENERATION
[J].
PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS,
1956, 44 (12)
:1718-1735
[5]
SMALLWOOD RH, 1985, IEE P A