초록 ▼

A pulse width and amplitude control apparatus wherein an analog Doppler to digital pulse converter provides pulses to the up input of an up/down counter in the presence of a noise input or a Doppler input, and a second analog Doppler to digital pulse converter applies pulses with greater frequency t

A pulse width and amplitude control apparatus wherein an analog Doppler to digital pulse converter provides pulses to the up input of an up/down counter in the presence of a noise input or a Doppler input, and a second analog Doppler to digital pulse converter applies pulses with greater frequency to the down input of the up/down counter when a Doppler signal exceeding a predetermined threshold is present, so that a low or no signal condition increases and a high signal condition decreases the transmit pulse envelope.

대표청구항 ▼

In a Doppler radar having a transmitter for periodically transmitting pulses of electrical energy and a receiver for receiving reflected portions of energy of the transmitted pulses, a pulse control apparatus comprising: first means for providing pulses only when a predetermined threshold is exceede

In a Doppler radar having a transmitter for periodically transmitting pulses of electrical energy and a receiver for receiving reflected portions of energy of the transmitted pulses, a pulse control apparatus comprising: first means for providing pulses only when a predetermined threshold is exceeded having an input and an output, said input being responsive to signals present in the receiver; second means for providing pulses only when a predetermined threshold is exceeded having an input and an output, said input being responsive to signals present in the receiver; and means for counting pulses having a first input coupled to said output of said first means for providing pulses, said means for counting pulses having a second input coupled to said second means for providing pulses such that said first means for providing pulses increases the width and amplitude of the pulses transmitted by the transmitter by a first fixed increment and said second means for providing pulses decreases the width and amplitude of the pulses transmitted by the transmitter, by a second fixed increment, said first means for counting pulses providing an output for determining the width and amplitude of pulses transmitted by the transmitter.