How do you find the maximum unambiguous range?
How do you find the maximum unambiguous range?
The maximum range from which a transmitted radar, lidar, or sodar pulse can be reflected and received before the next pulse is transmitted. This range, rmax, is given by rmax = cT/2, where T is the interpulse period and c is the speed of light (or speed of sound in the case of sodar).
What is maximum ambiguous range?
The maximum unambiguous range (Rmax) is the longest range to which a transmitted pulse can travel out to and back again between consecutive transmitted pulses. In other words, Rmax is the maximum distance radar energy can travel round trip between pulses and still produce reliable information.
What is the maximum range of a radar?
Therefore, the maximum range of Radar for given specifications is 158KM.
What is relation between PRF and PRT?
The time between the beginning of one pulse and the start of the next pulse is called pulse-repetition time (PRT) and is equal to the reciprocal of PRF as follows: PRT = 1. (1) PRF.
What is the minimum range of radar?
The minimum range capability of a radar is determined primarily by the pulse length. It is equal to half the pulse length of the radar (164 yards per microsecond of pulse length).
What is blind speed in radar?
The radar blind speed is the speed at which the target will not be visible to the radar. This speed can be calculated based on the frequency/wavelength of the wave and the Pulse Repetition Time.
What is the range of radar?
Radar range is increased by the peak power. Radar waves travel through the atmosphere at roughly 3×105km per second. It is equivalent to the range of the speed light. The range to a target is set on by measuring the time that a radar signal takes to travel out to the target and the back.
What is unambiguous range of radar?
May 4, 2017. The unambiguous range of a radar is the maximum range at which a target can be located so as to guarantee that the reflected signal/pulse from that target corresponds to the most recent transmitted pulse. The radar range is measured by the time delay between pulse transmission and reception.
What is the frequency range of radar?
Most radars, in practice, operate between 400 MHz to 36 GHz; however, there are some notable exceptions. The optical and radio portions of the electromagnetic spectrum occupy positions coincidental with two important transparent bands in the Earth’s atmosphere and ionosphere.
What is average power in radar?
Since a pulse radar does not radiate continually, the average power is much less than the peak power. In this example, the average power is 1 kilowatt. The average power, rather than the peak power, is the measure of the capability of a radar system.
What is the formula for the maximum unambiguous range?
Therefore maximum unambiguous range Rmax is the maximum range for which t < T. The factor of 2 in the formula accounts for the pulse traveling to the target and then back to the radar. The length of the transmitted pulse (pulse width τ ) in this formula indicates that the complete echo impulse must be received.
Which is greater maximum unambiguous range or maximum display range?
The greater the pulse repetition frequency fp (in pulses per second), the shorter the pulse repetition time T (interpulse period) and the shorter the maximum unambiguous range Rmax of the radar. Rmax must be larger than the Maximum Display Range (so-called: instrumented range).
Which is the maximum unambiguous range for PRF?
This page of converters and calculators section covers radar Pulse Repetitive frequency (PRF) to maximum unambiguous rangeand vice versa converter. PRF (Pulse Repetitive Frequency) in Hz (input1) :Unambiguous Range in meters (Output1): EXAMPLE:PRF = 800 Hz Max.
How to calculate the unambiguous range of a radar?
Example: Calculate the maximum unambiguous range of a radar from a known pulse repetition frequency 2 kHz or pulse repetition rate 500 μs. To calculate, enter the values into the corresponding boxes, select Imperial or metric units and click or tap the Calculate button.