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Unique space time adaptive system (uss)Unique space time adaptive system (uss) description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070200750, Unique space time adaptive system (uss). Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit, Under 35 U.S.C. .sctn. 119(e), of U.S. Provisional Application No. 60/677,576, filed May 4, 2005, which is hereby incorporated by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of Invention [0003] The field of the invention relates generally to radars and more specifically to a radar mounted on a moving platform employing an electronic scanned array with a transmission array and receive array (channel) or arrays (channels). [0004] 2. Description of the Related Art [0005] In the field of this invention, detecting radar returns as moving targets and rejecting others such as clutter and others has been a challenge for many years. Obtaining a moving object's velocity, azimuth, and measurement of its parameters have been an objective of many radar systems. In relatively recent years with the increased processing and storage of improved integrated circuits, space time adaptive processing ("STAP") has become more practical. [0006] U.S. Pat. No. 5,563,601 (the "'601 patent") issued Oct. 8, 1996 and entitled TWO PORT CLUTTER SUPPRESSION INTERFEROMETRY SYSTEM FOR RADAR DETECTION OF MOVING TARGETS is incorporated, in it's entirety, by reference herein. The '601 discloses, in part, a two port radar system for detecting and measuring range, azimuth and velocity of radar returns. This patent utilizes the detection of shadows to locate the targets azimuth and not employing any other technique in combination with it and it is meant for land clutter and not sea clutter. [0007] U.S. Pat. No. 6,633,253 (the '253 patent") issued and entitled DUAL SYNTHETIC APERTURE RADAR SYSTEM is incorporated, in its entirety, by reference herein. The '253 patent discloses, in part, a system which utilizes an electronic scanned array with two receive channels (arrays) on an airborne platform. The system employs displaced phase center antenna (DPCA) techniques to cancel clutter and detect moving targets and measures its range, velocity and azimuth accurately. SUMMARY [0008] The UNIQUE SPACE TIME ADAPTIVE SYSTEM (USS) system is unique in a number of ways. For example, it does not require clutter cancellation of any kind and it may employ as few as one channel or as little as one pulse. It is as accurate or more accurate as any known STAP system, hardware and dwell time and processing are a minimum. It utilizes a combination of techniques, but basically employs single or two or more equal receive arrays or pulses with or without DPCA methodology, detects returns and measures their velocity, azimuth and range. It also takes different looks in time to measure differences with time, for purpose of determining radial velocity unambiguously and tangential and vertical tangential velocity. [0009] In one embodiment, a system utilizes one, two, or more equal receive channels processed with "M" pulses of time data. In another embodiment, the system implements as few as one or two pulses of time data and has "N" channels of data employed and processed. [0010] Both systems will detect a return or number of returns in the same range doppler or range azimuth bin such as clutter, target, noise, jamming, etc and identify them out measure there three dimensional position and velocity. This is performed without employing any clutter cancellation of any kind. [0011] The returns are processed to detect returns and detect moving targets of interest and reject unwanted returns such as clutter, sidelobes, movers, multipath returns, others. [0012] USS does not require clutter cancellation therefore there is no clutter covariance matrix or training data involved or knowledge aided information. Channel matching is not required. USS has the ability to handle more returns than clutter and target per range doppler bin (RDB) or range azimuth bin (RAZ) and determine there range, velocity and azimuth accurately. Thresholding and post processing of the returns will determine if returns are clutter, moving target, antenna sidelobes, filter sidelobes, multipath returns, etc. It has the ability to handle ground moving targets, high speed targets, ship detection and identification in a unique and simplified manner. BRIEF DESCRIPTION OF DRAWINGS [0013] So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments. [0014] FIG. 1--depicts top views of some of the positions that ships may be as relative to the radar and the position the ship is detected and the actual ship position; [0015] FIG. 1A--depicts the Ship moving towards the radar; [0016] FIG. 1B--depicts the Ship heading away from the radar; [0017] FIG. 1C--depicts the Ship to the left of and perpendicular to the radar; [0018] FIG. 1D--depicts the Ship to the right of and perpendicular to the radar; [0019] FIG. 2--depicts a high level block diagram in accordance with the invention; [0020] FIG. 3--depicts an embodiment of a chart for determination of the height of ships when detected and the solution of the height dependent on various factors; Continue reading about Unique space time adaptive system (uss)... Full patent description for Unique space time adaptive system (uss) Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Unique space time adaptive system (uss) patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Unique space time adaptive system (uss) or other areas of interest. ### Previous Patent Application: Reflection free launcher for electromagnetic guide wire Next Patent Application: Correlation processor for receiver Industry Class: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) ### FreshPatents.com Support Thank you for viewing the Unique space time adaptive system (uss) patent info. 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