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Modern radars generally perform all of these MTI techniques as part of a wider suite of signal processing being carried out by digital signal processors. MTI may be specialized in terms of the type of clutter and environment: airborne MTI (AMTI), ground MTI (GMTI), etc., or may be combined mode: stationary and moving target indication (SMTI).
Pulse-Doppler typically uses medium pulse repetition frequency (PRF) from about 3 kHz to 30 kHz. The range between transmit pulses is 5 km to 50 km. Range and velocity cannot be measured directly using medium PRF, and ambiguity resolution is required to identify true range and speed.
Areas outside the blue zones are blind ranges and blind velocities, which are filled in using multiple PRF and frequency agility. The unambiguous zone is in the lower left corner. All of the other blocks have ambiguous range or ambiguous radial velocity. Pulse Doppler radar relies on medium pulse repetition frequency (PRF) from about 3 kHz to ...
A commonly used radar or sonar pulse is the linear frequency modulated (LFM) pulse (or "chirp"). It has the advantage of greater bandwidth while keeping the pulse duration short and envelope constant. A constant envelope LFM pulse has an ambiguity function similar to that of the square pulse, except that it is skewed in the delay-Doppler plane ...
For dogs, xylitol can cause a dangerous drop in blood sugar and liver failure. 6. Alcohol. It might seem obvious, but even small amounts of alcohol can have serious effects on a dog’s liver and ...
The Benadryl tablets for sale in most stores are 25 mg. If your dog is 50 pounds, for example, give him 2 tablets (50 mg total) and see how he responds before giving him the larger dose. Always ...
The JY-14 (domestic designation: LLQ302, formerly known as: 384) is a medium to long range air defense radar produced and used by the People's Republic of China.It is capable of detecting multiple targets within its range and determine their parameters, tracking them even through surface clutter and ECM jamming.
The ability to counter steep diving missiles was improved with more energy at higher elevations or longer pulse. [ 5 ] : 316–317 SPY-1B(V) is a development of earlier SPY-1B with moving target indication capability incorporated in 1997.