Multistatic radars utilize multiple transmitter and receiver sites to provide several different monostatic and bistatic channels of observation. Multistatic passive and active systems can offer many advantages in terms of coverage and accuracy in the estimation of target signal parameters but unfortunately their performances are heavily sensitive to the position of receivers (RX) and transmitte...

-We are developing a laser radar (lidar) altimeter that uses commercial off-the-shelf fiber-optic components and traditional RF and digital signal processing techniques to achieve fine-range accuracy despite a low transmit peak power. A 1550-nm operating wavelength was selected so that available erbium-doped fiber amplifiers (EDFAs) could be used to provide optical gain. The transmitted signal,...

In this paper, we consider a monostatic radar and study the joint detection localization of prospective target when receiver is assisted by reconfigurable intelligent surface (RIS). To mitigate multiplicative path loss in target-RIS-radar hops, resort to an active RIS, which allows both redirecting amplifying incident signal. Upon choosing array gain factor transmitter RIS uniformly cover inspe...

This paper describes the turbulent eddy profiler (TEP), a volume-imaging, UHF radar wind profiler designed for clear-air measurements in the atmospheric boundary layer on scales comparable to grid cell sizes of large eddy simulation models. TEP employs a large array of antennas—each feeding an independent receiver—to simultaneously generate multiple beams within a 288 conical volume illuminated...

Bistatic SAR uses separated transmitter and receiver flying on different platforms. This configuration is envisaged to achieve benefits like the exploitation of additional information contained in the bistatic reflectivity of targets, reduced vulnerability in military systems or forward looking SAR imaging. The feasibility of the bistatic concept was already demonstrated by experimental investi...

In vertical radar profiling (VRP), the receiver antenna is located within a borehole while the transmitter antenna is placed at varying offsets from the borehole. VRP surveys are primarily used to reconstruct subsurface georadar velocities by inverting direct-wave traveltimes. We examine the VRP technique and associated concepts that need to be considered when acquiring, analyzing and interpret...

A bistatic X-band experiment was successfully performed early November 2007. TerraSAR-X was used as transmitter and DLR’s new airborne radar system F-SAR, which was programmed to acquire data in a quasicontinuous mode to avoid echo window synchronization issues, was used as bistatic receiver. Precise phase and time referencing between both systems, which is essential for obtaining high resoluti...

We present a description and analysis of the German WW2 bistatic radar system Klein Heidelberg. A brief account is given of the nature of the electronic war between the Allied bomber aircraft and the German air defence system, to show the context in which the Klein Heidelberg system evolved. This is followed by a description of the development of Klein Heidelberg, a technical description, and a...

A sequential decision process in which an adaptive radar system repeatedly interacts with a finite-state target channel is studied. The capable of passively sensing the spectrum at regular intervals, provides side information for waveform selection process. transmitter uses sequence observations as well feedback from collocated receiver to select waveforms accurately estimate parameters. It sho...

This is the final report on the project entitled “Validation of AMSR snow depth on sea ice retrievals using an airborne pulse radar.” This is a collaborative project between the Center for Remote Sensing of Ice sheets (CReSIS) at the University of Kansas and NASA Goddard Space Flight Center (GSFC). We designed and developed ultrawideband radars for measuring thickness of snow over sea ice from ...