Electronics (Mike Jaroch)
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PROBE COUPLERA resonant conductor placed in a waveguide or cavity to insert or extract energy [18]. | ||
PROGRAMMED TRACKINGThe method that uses known satellite orbital parameters to generate antenna pointing angles [17]. | ||
PROPAGATIONWaves traveling through a medium [10]. | ||
PULSESignal characterized by a steep rise from and decay toward an initial level [9] [12]. | ||
PULSE DURATIONPULSE DURATION (PD)—The period of time during which a pulse is present [12]. | ||
PULSE MODULATIONA form of modulation in which one of the characteristics of a pulse train is varied [12]. | ||
PULSE OSCILLATORA sine-wave oscillator that is turned on and off at specific times. Also known as a ringing oscillator [9]. | ||
PULSE WIDTHDuration of time between the leading and trailing edges of a pulse [12] [18]. | ||
PULSE-AMPLITUDE MODULATIONPULSE-AMPLITUDE MODULATION (PAM)—Pulse modulation in which the amplitude of the pulses is varied by the modulating signal [12]. | ||
PULSE-CODE MODULATIONPULSE-CODE MODULATION (PCM)—A modulation system in which the standard values of a quantized wave are indicated by a series of coded pulses [12]. | ||