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- W4382602379 abstract "Berenice Verdin and Benjamin C. FloresAbstract: The purpose of this chapter is to study the system parameters and signal processing schemes required to build a high resolution chaotic LADAR (Laser Detection and Ranging). Specifically, the LADAR is based on a semiconductor laser that generates a wideband chaotic signal via optical feedback. The behavior of the laser output is modeled by changing the control parameters of the delay differential equations that dictate the behavior of the laser output. Depending on the feedback level and the external cavity length the output of the laser, a route to chaotic behavior is found. Experiments show that the power spectral density and autocorrelation of the electric field of the laser output can be controlled to achieve maximum range resolution. An ideal signal is obtained for a feedback level of 0.05 and an external cavity length of 0.30 m. The corresponding spectrum has a compression bandwidth of 22.12 GHz.In addition, a full analysis of the ambiguity function reveals that the optimized chaotic electric field has a “thumbtack shape” which is ideal for extracting range and Doppler information. A range resolution of 6.7 mm and a pedestal level -30 dB is achieved. For illustrative purposes, the signature of a Boeing 777 is modeled using hot spots, i.e., scattering points." @default.
- W4382602379 created "2023-06-30" @default.
- W4382602379 date "2013-01-01" @default.
- W4382602379 modified "2023-09-24" @default.
- W4382602379 title "Chapter 6: Characterization and Optimization of a Chaotic LADAR System for High Resolution Range Determination" @default.
- W4382602379 doi "https://doi.org/10.1137/1.9781611973266.ch6" @default.
- W4382602379 hasPublicationYear "2013" @default.
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