Wide-band polarimetry and complex radar cross section signatures

Article Abstract:

An ultra-broad-band, intelligent, error-correcting polarimetric radar cross section (RCS) measurement system is developed for the identification of complex targets with dispersive polarimetric signatures (DPSs) and polarization signatures (PSs). Identifying and interpreting targets by their RCS signatures is a complex task that requires automation for adequate performance. The theoretical bases of the derivation of the complex RCS and related scattering signature matrices are described. Their mathematical transformation of the data for analysis of polarization is developed and implemented in the measurement system. The system is applied to the identification of several models for validation of the theoretical and practical aspects of RCS signature measurement.

Search and navigation equipment, Systems analysis, Signal processing, Broadband, System Design

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Some results in the bistatic radar cross section (RCS) of complex objects

Article Abstract:

A history of the evolution of bistatic radar cross section (RCS) of complex objects reveals the major improvements that advanced digital computation and measurement technologies have made in the area. Measurement technologies now include computer-controlled network analyzers and frequency synthesizers and such methodologies as Fourier transforms, numerical electromagnetic coding, 'Unimoment,' and time domain and iterative approaches. Supercomputers can now be used to resolve the bistatic RCS of objects with a volume of up to 100 cubic wavelengths through the use of the method of moments. The history of the theoretical foundations and applications of bistatic RCS analysis is also described. Several experiments in bistatic RCS are briefly noted.

Computer history, Applications, History of Computing

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CHIRP Doppler Radar

Article Abstract:

An analogy between a clinical procedure known as reconstruction tomography and pulse compression of linear frequency modulated (CHIRP) pulses is described. A configuration to combine the tomography and the CHIRP pulse compression is discussed. A block diagram shows the CHIRP doppler radar.

Technology, Tracking systems (Navigation), X-rays, Frequency modulation, Instruments, Theory, Image Reconstruction, CAT Scanners, Tracking Systems, letter to the editor

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