To calculate the detection distance of an infrared homing head upon a cruise missile exactly,the infrared radiation characteristics of both a cruise misile and its terrain background are analyzed and then a model for calculating the detection distance of an infrared homing head upon a cruise missile is established in this paper.

This paper studies the calculation of IR radiation and the simulation of IR image for complex terrain backgrounds.

Recognition algorithm for sea background infrared targets

The target s SNR(Signal Noise Ratio)and contrast are very low when the target is in the sea background in which there are sea waves and the reflexing light from the stretch welter.

In this paper,the thermal model of a small target in view of the radiation model of sea background and the atmospheric absorption model of infrared radiation is established.

Study of geological settings of Fuxin Basin and multi-energy reserves

Based on geological setting and mineralization occuring situation of maquan basin, this paper analyses the ore formation prospect of Maquan basin and discusses its prospecting direction.

Different fruit-producing areas are controlled by different geological settings.

Endemia effects and impacts of geological background on soil elements distribution and effects of endemic disease in the Three Gorges Reservoir District;

Characteristics of soil and water loss based on geological background in Guizhou province;

Shallow geological background of shallow gas in the western South Yellow Sea;