M-Number | Article about M-Number by The Free Dictionary
the ratio of the velocity ν of a flow of a liquid or gas at a point to the velocity of sound a at the same point in the flow: M = v/a. The M-number is usually called the Mach number. In Soviet literature the M-number is sometimes called the Maievskii number. (SeeMACH NUMBER.)
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The transmitter consists of two chips: one chip incorporates an oscillator and M-number phase-shift keying (PSK) modulator, the other is a three-stage power amplifier.
The M-number PSK modulator uses a four-stage reflection-type phase shifter with varactor diodes.