System and method for moving target detection

A method for detecting a moving target, the method comprising:

• detecting radiation reflected off of a target or emitted by a target;
• digitizing the detected radiation resulting in a set of data returns;
• applying motion compensation to the entire set of data returns:
• selecting a plurality of blocks of the motion compensated data that are highly overlapping in time;
• generating a plurality of images from the plurality of blocks of motion compensated data;
• selecting a consecutive set of the plurality of images;
• and
• identifying moving objects represented within the consecutive set of images;
• wherein the step of identifying moving objects comprises:
• extracting a time series of reflection coefficients for at least some of the pixel locations of the consecutive set of images;
• producing a pixel function for each pixel, thereby representing the consecutive set of images by a collection of pixel functions;
• removing the linear phase component from each pixel function, producing phase compensated pixel functions;
• applying a high pass filter to each phase compensated pixel function;
• and
• integrating the output of each filtered pixel function to produce a corresponding pixel value.

A system for detecting moving targets, comprising:

• a radar having a single receive phase center receiving radiation and generating a data set representing the received radiation;
• a motion compensation element for motion compensating the entire data set;
• a moving target detect element:
• selecting a plurality of blocks of the motion compensated data that are highly overlapping in time,
• generating a plurality of images from the plurality of blocks of motion compensated data,
• identifying moving objects represented within the plurality of images.

A method for detecting a moving object, the method comprising:

• receiving a signal from a target;
• forming a first set of data based on at least information associated with the received signal;
• performing a motion compensation to the entire first set of data to form a second set of motion compensated data;
• forming at least a first subset of motion compensated data and a second subset of motion compensated date, the first subset of motion compensated data being a first part of the second set of motion compensated data, the second subset of motion compensated data being a second part of the second set of motion compensated data, the first subset and the second subset overlapping in time;
• generating at least a first image and a second image based on at least information associated with the first subset and the second subset respectively;
• and
• identifying a moving object based on at least information associated with the first image and the second image;
• wherein
• the performing motion compensation to the entire first set of data is free from dividing the first set of data into at least a third subset of data and a fourth subset of data, the third subset and the fourth subset overlapping in time.

A system for detecting a moving object, the system comprising:

• an antenna configured to receive a signal from a target and form a first set of data based on at least information associated to the received signal;
• a motion compensation system configured to perform a motion compensation on the entire first set of data and form a second set of motion compensated data;
• a moving object detection system configured to
• form at least a first subset of motion compensated data and a second subset of motion compensated date, the first subset of motion compensated data being a first part of the second set of motion compensated data, the second subset of motion compensated data being a second part of the second set of motion compensated data, the first subset and the second subset overlapping in time;
• generate at least a first image and a second image based on at least information associated with the first subset and the second subset respectively;
• and
• identify a moving object based on at least information associated with the first image and the second image;
• wherein
• the perform a motion compensation on the entire first set of data is free from dividing the first set of data into at least a third subset of data and a fourth subset of data, the third subset and the fourth subset overlapping in time.