A radar system that transmits pulses of radio energy rather than a continuous beam. noun. With the help of pulse compression, a relatively long transmission pulse with comparatively low peak power can achieve a better, longer range than the basic radar equation would suggest. The common radar carrier modulation, known as the pulse … Radar - Radar - Pulse radar: The most common type of radar signal consists of a repetitive train of short-duration pulses. How a Pulse Radar Works. A radar pulse train is a type of amplitude modulation of the radar frequency carrier wave, similar to how carrier waves are modulated in communication systems. Radar Receiver: A unit of a radar set which demodulates received radar echoes, amplifies the echoes, and delivers them to the radar indicator. A typical Radar wave form is shown in the following figure. WikiMatrix. A monopulse antenna is one method of realizing a tracking radar. The radar transmit short pulses of radio frequency which are partially bounced back by airborne objects or spacecrafts. The heart of these radar units is a device called a magnetron, a vacuum tube that emits an extremely brief, powerful pulse of microwave radiation, 4,000 Watts or more. To understand what’s new in radar, we’ll take a quick look at the “old school” radars of the past. This is because pulse compression can still detect echo signals that have already disappeared in the noise before pulse compression. The word "monopulse" implies that with a single pulse, the antenna can gather angle information, as opposed to spewing out multiple narrow-beam pulses in different directions and looking for the maximum return. Example sentences with "coherent pulse radar", translation memory. Word of the day. In this case, the information signal is quite simple: a single pulse repeated at regular intervals. Pulsed radar systems transmit short pulses and calculate the distance to an illuminated target by measuring the time delay between a transmitted pulse and the returning reflected signal. Pulse Repetition Frequency Radar signals should be transmitted at every clock pulse. 1940s; earliest use found in Scientific Monthly. The figure shows a simple representation of a sine-wave pulse that might be generated by the transmitter of a medium-range radar designed for aircraft detection. Pulse-Doppler is a 4D radar system capable of detecting a target 3D location and its radial velocity (range-rate). A radar system that transmits pulses of radio energy rather than a continuous beam. The duration between the two clock pulses should be properly chosen in such a way that the echo signal corresponding to present clock pulse should be received before the next clock pulse. spousing / ˈspaʊzɪŋ / noun. coherent pulse radar. 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