What is the function of synchronizer in radar?
SYNCHRONIZER Function The specific function of the synchronizer is to produce TRIGGER PULSES that start the transmitter, indicator sweep circuits, and ranging circuits. Timing or control is the function of the majority of circuits in radar.
What is pulse radar system?
A pulse-Doppler radar is a radar system that determines the range to a target using pulse-timing techniques, and uses the Doppler effect of the returned signal to determine the target object’s velocity.
What are the 3 parts of radar system?
Radar Components
- Antenna Unit (Antenna + Motor) : Antenna that radiates waves, Motor that rotates the Antenna.
- Transceiver Unit: Unit generating waves and processing the signal.
- Processing Unit: Unit processing signals from radar components and external devices.
What is modulator in radar?
The radar modulator generates a high voltage for the transmitter tube for the duration of the transmitting pulse. This radar modulator practically only switches on the anode voltage for the transmitter tube for the time of the transmitting pulse.
What is timer in radar?
Timer. The timer, which is also called the trigger generator or the synchronizer, generates a series of narrow timing, or trigger, pulses at the pulse repetion frequency. These timing pulses turn on the modulator, which pulses the transmitter. The indicator is also synchronized to the timer.
How do radar systems work?
A radar system has a transmitter that emits radio waves known as radar signals in predetermined directions. When these signals contact an object they are usually reflected or scattered in many directions, although some of them will be absorbed and penetrate into the target.
What are 5 basic components of radar?
Basic design of radar system
- Transmitter. The radar transmitter produces the short duration high-power rf pulses of energy that are into space by the antenna.
- Duplexer. The duplexer alternately switches the antenna between the transmitter and receiver so that only one antenna need be used.
- Receiver.
- Radar Antenna.
- Indicator.
How is PRF measured?
Pulse repetition frequency (PRF) indicates the number of ultrasound pulses emitted by the transducer over a designated period of time. It is typically measured as cycles per second or hertz (Hz). In medical ultrasound the typically used range of PRF varies between 1 and 10 kHz 1.