Arbitrary waveform generator architecture

Details Arbitrary waveform generator architecture Arbitrary waveform generator architecture

H - Electricity

03

K

H03K 4/00 (2006.01) G06F 1/03 (2006.01)

Patent

CA 2112252

2112252 9300737 PCTABS00019 A method of direct digital synthesis of linear frequency modulated wave forms comprising the steps of: at a given regular time, adding a fixed frequency increment word (1) to a frequency control value stored in a first register (4) to produce a lineally increasing frequency control word; adding the frequency control word stored in the first register (4) to a second register (8) to form a quadratically increasing phase word; converting the quadratically increasing phase word to an amplitude value using a lookup table stored in a memory means (9) to produce a lineally increasing frequency, and periodically resetting the frequency control word to produce a frequency sawtooth. Also a device for implementing the method being an arbitrary waveform generator comprising a pluraality of accumulators (4+5, 7+8), a memory means (9), a convertor means (10) and a clock means (6).

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