Nonlinearity correction of low cost UWB X-band LFMCW-SAR source}{Nonlinearity correction of low cost UWB X-band LFMCW-SAR source

Low-cost, compact UWB antenna with frequency band- notch function

Low-cost, compact, circular planar dipole UWB antennas have been designed, based on the ‘two-penny dipole’. One of the dipole arms has been integrated with the ground plane of a microstrip transmission line, the strip being connected to the other dipole arm. The use of microstrip in stead of stripline technology hardly degrades the radiation characteristics, but simplifies the antenna architect...

A Network of Portable, Low-Cost, X-Band Radars

Low Cost X Band Radar System for Multiple Target Detection

Radar based object detection systems have been in place for about a century serving various purposes like detection of ships aircrafts, spacecraft, navigation, reading weather formations and terrain mapping. With the advent of better packing technologies and signal conditioning circuits radars have become compact and affordable thus offering comparatively low cost solutions than other systems b...

Interferometric SAR Space-Varying Filtering of X-Band SRTM Data

Interferometric SAR data should be filtered in order to remove the geometrical decorrelation caused by the presence in the signal pair of “incoherent” components not illuminated in both the passes. This operation is generally carried out, via common band filters, by assuming a planar topography whereas in the real, non-planar topography case, the problem becomes space variant. We discuss the ap...

Design of Low Frequency Band Pass Filters for SAR applications

Technologies have advanced rapidly in the field of digital signal processing due to advances made in high speed, low cost digital integrated chips. These technologies have further stimulated ever increasing use of signal representation in digital form for purposes of transmission, measurement, control and storage. Design of digital filters especially adaptive or semi adaptive is the necessity o...