Search results
Results from the WOW.Com Content Network
Moving target indication (MTI) is a mode of operation of a radar to discriminate a target against the clutter. [1] It describes a variety of techniques used for finding moving objects, like an aircraft, and filter out unmoving ones, like hills or trees.
The simplest method is available when the apparent size of the target is relatively small with respect to clutter source. In this case the reduced pulse and beam width, which matches the expected target size, may produce good signal-to-noise ratio (target to clutter ratio). Additional discrimination capabilities rely on target imaging or ...
The basic concept is to produce a pulse of radio signal similar to the one that the target radar would produce when it reflects off the aircraft. This second pulse is then increasingly delayed in time so that the radar's range gate begins to follow the false pulse instead of the real reflection, pulling it off the target.
It involves adaptive array processing algorithms to aid in target detection. Radar signal processing benefits from STAP in areas where interference is a problem (i.e. ground clutter, jamming, etc.). Through careful application of STAP, it is possible to achieve order-of-magnitude sensitivity improvements in target detection.
The pulse-repetition frequency (PRF) is the number of pulses of a repeating signal in a specific time unit. The term is used within a number of technical disciplines, notably radar . In radar, a radio signal of a particular carrier frequency is turned on and off; the term "frequency" refers to the carrier, while the PRF refers to the number of ...
MTI may refer to: Government and military ... Moving target indication, a radar signal processing technique used to distinguish targets from clutter; Organizations
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. [5]: 316–317
Pulse compression is a signal processing technique commonly used by radar, sonar and echography to either increase the range resolution when pulse length is constrained or increase the signal to noise ratio when the peak power and the bandwidth (or equivalently range resolution) of the transmitted signal are constrained.