| 摘要 |
A method of remote sensing, by a sensor, of electromagnetic signals (202) from a target (204), the method comprising creating an atmospheric electromagnetic radiation path modifying element (210) operative to simulate a physical electromagnetic radiation path modifying device and oriented to modify the path of electromagnetic signals (202) from said target (204) so as to direct said electromagnetic signals toward said sensor, the method comprising applying an electromagnetic radiation source (212) to a selected plurality of three-dimensional portions of an atmospheric volume located in said path of electromagnetic signals (202) from said target (204) so as to heat and/or ionise the air within said portions, wherein said selected portions are spatially located together in a substantially unbroken three-dimensional configuration. |
