Table of Contents
- 1 What is the use of range gate in radar?
- 2 What is the range on a gate?
- 3 What is range gate stealing in radar?
- 4 What is the maximum range of radar?
- 5 What is gate effect?
- 6 How does radar determine range?
- 7 What is the function of a range gate in radar?
- 8 What determines the range of a radar signal?
- 9 What is the Doppler frequency of a range gate?
What is the use of range gate in radar?
A range gate is an electronic circuit that selects signals within a given time period; the “gate” allows signals to pass through only within the selected time. The term is mostly used in radar, where range gates are used to select certain targets for further processing.
What is the range on a gate?
The gate range is the amount of gain reduction that the gate closes down to. Therefore, if the range is set at 0dB, there will be no change in the signal as it crosses the threshold. If the range is set to -60dB, the signal will be gated (reduced) by 60dB, etc.
What is range gate stealing in radar?
range gate pull off/stealing (RGPO) An ECM (electronic countermeasures) technique used against ground tracking radar generally deployed with surface-to-air weapon systems. The aim is to confuse the radar tracker and launch the missile at a wrong range and thus save the actual target.
What is range gate delay?
A selectable interval of range (or of time delay from transmission) within which returning radar signals are measured. Some systems employ as many as a thousand range gates to measure the signals returned along each pointing direction. …
What is split range gate?
17.2.2 Split-Gate Range Tracker The most common configuration for range tracker implementations is that of a split-gate tracker (also referred to as an early-gatellate-gate tracker). A split- gate tracker is designed to track the centroid of the video corresponding to the desired target.
What is the maximum range of radar?
The maximum range of the Radar for given specifications is 128km.
What is gate effect?
When you hear the words ‘gate effects’ or ‘gates,’ what people are talking about – even if they don’t know they’re talking about it – is a noise gate. It’s an electronic switch that mutes a signal falling below a certain level to ‘gate out’ unwanted noise.
How does radar determine range?
The range to a target is determined by measuring the time that a radar signal takes to travel out to the target and back. The range to the target is equal to cT/2, where c = velocity of propagation of radar energy, and T = round-trip time as measured by the radar.
What is range in radar?
Range is the distance from the radar site to the target measured along the line of sight. (3) The factor of two in the equation comes from the observation that the radar pulse must travel to the target and back before detection, or twice the range.
What is the meaning of radar range resolution?
Range resolution is the ability of a radar system to distinguish between two or more targets on the same bearing but at different ranges. The degree of range resolution depends on the width of the transmitted pulse, the types and sizes of targets, and the efficiency of the receiver and indicator.
What is the function of a range gate in radar?
In radar air warfare, what is the function of a “range gate?” , Former U.S. Naval Aviator/combat fighter pilot/TOPGUN grad. It determines the range to the target. Range Gating: The range discrimination of the radar is regulated by so called range gates.
What determines the range of a radar signal?
It determines the range to the target. Range Gating: The range discrimination of the radar is regulated by so called range gates. This means that the received echo signal is sampled at given time-slots and each of these points in time corresponds to a range gate in distance.
What is the Doppler frequency of a range gate?
The Doppler frequency depends on height: h = λ f D 2 ω. By analyzing the Doppler frequency of signals received in one range gate, it is possible to measure the height of the target reflectors relative to the center of rotation.
How does the range gate sampling work?
The range gate sampling part of the processing involves the calculation of the terms in which i and p are the interpulse period and the range cell numbers, respectively. This integration operation on received signal x (t) during gate p ( p τ to p τ+ T) has already been described. It can be seen from two standpoints: