Posts: 604
Threads: 584
Joined: Dec 2008
Space-Time Adaptive Processing (STAP) refers to a class of signal processing techniques used to process the returns of an antenna array radar system. It enhances the ability of radar to detect targets that might otherwise be obscured by clutter or jamming.
The output of STAP is a linear combination or weighted sum of the input signal samples. The ?adaptive? in STAP refers to the fact that STAP weights are computed to reflect the actual noise, clutter and jamming environment in which the radar finds itself. The ?space? in STAP refers to the fact that the STAP weights (applied to the signal samples at each of the elements of the antenna array) at one instant of time define an antenna pattern in space. If there are jammers in the field of view, STAP will adapt the radar antenna pattern by placing nulls in the direction of those jammers thus rejecting jammer power. The ?time? in STAP refers to the fact that the STAP weights applied to the signal samples at one antenna element over the entire dwell define a system impulse response and hence a system frequency response.
STAP refers to an extension of adaptive antenna signal processing methods that operate on a set of radar returns gathered from multiple elements of an antenna array over a specified time interval. Because the signal returns are composed of range, pulse, and antenna-element samples, a three-dimensional (3-D) cube naturally represents STAP data. In most STAP implementations, there are three phases of computation, one for each dimension of the data cube (range, pulse and channel). Space-Time Adaptive Processing is an important but computationally demanding technique for mitigating clutter. High computational requirements coupled with need for future growth and expansion have led to a major investigation of the suitability of massively parallel processors for this application domain.
Posts: 2
Threads: 0
Joined: Oct 2009
can you give me the report
Posts: 438
Threads: 322
Joined: Aug 2009
Space-time Adaptive Processing (STAP), its signal processing technique most commonly used in radar systems. 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.). it is possible to achieve order-of-magnitude sensitivity improvements in target detection.STAP involves a two-dimensional filtering technique using a phased-array antenna with multiple spatial channels. Coupling multiple spatial channels with pulse-Doppler waveforms lends to the name "space-time." Applying the statistics of the interference environment, an adaptive STAP weight vector is formed. This weight vector is applied to the coherent samples received by the radar.
and also read
http://ieeexplore.ieeexpl/freeabs_all.js...ber=788009
if you have ieee acces ,sorry i dont have
Posts: 4
Threads: 0
Joined: Oct 2009
(31-01-2009, 12:44 AM)seminars projects crazy Wrote: Space-Time Adaptive Processing (STAP) refers to a class of signal processing techniques used to process the returns of an antenna array radar system. It enhances the ability of radar to detect targets that might otherwise be obscured by clutter or jamming.
The output of STAP is a linear combination or weighted sum of the input signal samples. The ?adaptive? in STAP refers to the fact that STAP weights are computed to reflect the actual noise, clutter and jamming environment in which the radar finds itself. The ?space? in STAP refers to the fact that the STAP weights (applied to the signal samples at each of the elements of the antenna array) at one instant of time define an antenna pattern in space. If there are jammers in the field of view, STAP will adapt the radar antenna pattern by placing nulls in the direction of those jammers thus rejecting jammer power. The ?time? in STAP refers to the fact that the STAP weights applied to the signal samples at one antenna element over the entire dwell define a system impulse response and hence a system frequency response.
STAP refers to an extension of adaptive antenna signal processing methods that operate on a set of radar returns gathered from multiple elements of an antenna array over a specified time interval. Because the signal returns are composed of range, pulse, and antenna-element samples, a three-dimensional (3-D) cube naturally represents STAP data. In most STAP implementations, there are three phases of computation, one for each dimension of the data cube (range, pulse and channel). Space-Time Adaptive Processing is an important but computationally demanding technique for mitigating clutter. High computational requirements coupled with need for future growth and expansion have led to a major investigation of the suitability of massively parallel processors for this application domain.
pls snd thr report
Posts: 5
Threads: 3
Joined: May 2010
automated system to maintain safe distance from traffic in the column
Posts: 201
Threads: 4
Joined: Jun 2010
Hi,
visit this thread for more details on this topic:
http://studentbank.in/report-automated-s...?pid=17682
