MSK modulator using a VCO to produce MSK signals

Details MSK modulator using a VCO to produce MSK signals MSK modulator using a VCO to produce MSK signals

1991-02-20

1992-10-13

Grimm, Siegfried H.

Modulators

Frequency shift keying modulator or minimum shift keying...

375 47, 375 64, 375 65, H04L 2712

Patent

active

051554542

ABSTRACT:
A Minimum-Shift Keying (MSK) modulator is described, wherein a feedback scheme is used in combination with a precise frequency reference to enable the production of MSK modulation at the output of an off-the-shelf voltage controlled oscillator (VCO). The upper and lower drive voltages for the VCO, corresponding to the upper and lower frequencies characteristic of MSK, are individually and independently corrected to compensate for imprecisions or fluctuations in the VCO characteristics. The correction increments are derived from phase excursion measurements over individual keying intervals.

REFERENCES:
patent: 3731233 (1973-05-01), Hutchinson
F. Amoroso and J. A. Kivett, "Simplified MSK signalling technique," IEEE Transactions on Communications, vol. COM-25, No. 4, pp. 433-441, Apr. 1977.
F. Amoroso, "Loss of SNR in low pass filtered FM/MSK," IEEE MILCOM '86, paper 40.2, Monterey, CA, Oct. 5-9, 1986.

Affiliated with

Also associated with

Rating

MSK modulator using a VCO to produce MSK signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with MSK modulator using a VCO to produce MSK signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MSK modulator using a VCO to produce MSK signals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1303727