| タイトル | High-resolution three-dimensional imaging radar |
| 本文（外部サイト） | http://hdl.handle.net/2060/20100042295 |
| 著者（英） | Dengler, Robert J.; Mehdi, Imran; Chattopadhyay, Goutam; Skalare, Anders J.; Schlecht, Erich T.; Siegel, Peter H.; Cooper, Ken B. |
| 著者所属（英） | California Inst. of Tech. |
| 発行日 | 2010-08-10 |
| 言語 | eng |
| 内容記述 | A three-dimensional imaging radar operating at high frequency e.g., 670 GHz, is disclosed. The active target illumination inherent in radar solves the problem of low signal power and narrow-band detection by using submillimeter heterodyne mixer receivers. A submillimeter imaging radar may use low phase-noise synthesizers and a fast chirper to generate a frequency-modulated continuous-wave (FMCW) waveform. Three-dimensional images are generated through range information derived for each pixel scanned over a target. A peak finding algorithm may be used in processing for each pixel to differentiate material layers of the target. Improved focusing is achieved through a compensation signal sampled from a point source calibration target and applied to received signals from active targets prior to FFT-based range compression to extract and display high-resolution target images. Such an imaging radar has particular application in detecting concealed weapons or contraband. |
| NASA分類 | Communications and Radar |
| 権利 | No Copyright |
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