Impulse waveform generating apparatus

Details Impulse waveform generating apparatus Impulse waveform generating apparatus

2006-12-04

2011-11-15

Pan, Yuwen (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

C327S164000, C327S184000, C327S291000, C341S144000, C341S148000

Reexamination Certificate

active

08060044

ABSTRACT:
An impulse waveform generating apparatus comprises an oscillator for generating a reference signal having a center frequency in a frequency band of an impulse to generate, a timing matching circuit for shifting a phase of the reference signal by 90 degrees, a frequency demultiplier for dividing a frequency of the phase shift signal and obtaining a timing signal having a frequency component having a frequency width of an impulse to generate, a memory storing a waveform shape table, a waveform forming section for forming a waveform in synchronism with the timing signal, according to information of a shape table having a predetermined waveform, a low-pass filter for obtaining an envelope signal from an output signal of the waveform forming section, and a waveform generating section for changing an amplitude of the reference signal according to a value of the envelope signal.

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