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| Extremal solution of the target\’s brightness temperature in millimeter wave radiometric measurements |
| Nie Jianying①②; Li Xingguo①; Lou Guowei① |
| ①Inst. of MMW & Optical Wave Tech., Nanjing Univ. of Sci. & Tech., Nanjing 210094,China;②Nanjing Normal University, Nanjing 210097, China |
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Abstract The near sensing techniques with millimeter wave play important role in many fields. To make precise measurements of the radiometric brightness temperature of a target, one must set up model of the interaction between the electromagnetic radiation properties of the antenna and the incident radiation from the environment. This interaction can be described by Fredholm integral equation of the first kind which is extremely unstable. In this paper, a inversion method is presented and is then applied to retrieve armored target’s brightness temperature in millimeter wave radiometric measurements.
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Received: 14 June 2002
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2003, Vol. 25 
