What is the principle of amplitude comparison monopulse tracking radar?
Introduction: Amplitude monopulse is an example of a simultaneous-lobing technique.In this technique the RF signals received from two offset antenna beams are combined so that both the sum and the difference signals are obtained simultaneously.
What are the advantages of monopulse radar over conical scan radar?
Angle accuracy is not affected by fluctuation in the echo amplitude. Angle accuracy is not affected by fluctuation in the echo amplitude. System performance is degraded by glint.
What is meant by tracking in range?
Range tracking is the process of continuously measuring the delay between the transmission of an RF pulse and the echo signal returned from a target. The range measurement is the most precise position-coordinate measurement of the radar; typically it can be within a few yards at hundreds-of-miles range.
How does monopulse tracking work?
A monopulse antenna is one method of realizing a tracking radar. 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.
What is the cause for variation in amplitude fluctuations in monopulse tracking?
The three major causes of variation in amplitude are (1) the inverse-fourth-power relationship between the echo signal and range, (2) the conical scan modulation (angle-error signal), and (3) amplitude fluctuations in the target cross section.
What are two different methods of measuring monopulse angle?
There are three main monopulse techniques for angle- sensing. These techniques are: amplitude-comparison, phase-comparison and the combination of the amplitude and phase comparison [1], [2].
What is monopulse secondary surveillance radar?
Description. Monopulse Secondary Surveillance Radar (Monopulse Secondary Surveillance Radar) is a technique developed to overcome two common problems with surveillance radar systems.
What is monostatic and bistatic radar?
Bistatic radar is a radar system comprising a transmitter and receiver that are separated by a distance comparable to the expected target distance. Conversely, a conventional radar in which the transmitter and receiver are co-located is called a monostatic radar.
What are the two types of tracking?
Different Types of Tracking Devices
- RFID. Radio Frequency Identification or RFID for short is a technique used in numerous fields for tracking purposes.
- Geofencing.
- Internet Tracking.
- Radio Tracking.
- Global Positioning System & Satellite Tracking.
- Cell-Phone Triangulation.
What is phase-comparison monopulse?
Phase-comparison monopulse (also called phase-interferometry) describes a technique that can be used in radar and direction finding applications to accurately estimate the direction of arrival of a signal from the phase difference of the signal measured on two (or more) separated antennas. This section does not cite any sources.
What is a phase monopulse antenna?
Instead, the angle information is determined from the phase positions of the individual antennas or antenna arrays. Therefore, phased array antennas are also termed Phase-comparison Monopulse Antennas, or shorter: Phase Monopulse Antennas.
What is a monopulse in radar?
Phase-comparison monopulse. Phase-comparison monopulse (also called phase-interferometry) describes a technique that can be used in radar and direction finding applications to accurately estimate the direction of arrival of a signal from the phase difference of the signal measured on two (or more) separated antennas.
What is the phase difference between monopulse and boresight Echo?
Phase comparison monopulse An echo on boresight will arrive at the two antennas at the same time and therefore the phase difference will be zero An echo from a target at an angle q to boresight will arrive at one antenna later than the other due to the extra distance it travels. 13.