Abstract: The present invention relates to a method of near real-time band jamming prevention, which provides a vehicle controller with the ability of examining autonomously the communication band between itself and a remote guidance and control apparatus, so that the vehicle controller can judge the jamming extent suffered by the communication band between the vehicle controller and the remote guidance and control apparatus. Thereby, the vehicle controller can execute corresponding actions in accordance with the judgment result of the method of near real-time band jamming prevention according to the present invention. In particular, when multiple vehicles operate synchronously and operators of the vehicles have no time to handle at the same time, the method of near real-time band jamming prevention according to the present invention provides the vehicle controllers with the ability of judging autonomously the communication band with preferred received signal strength intensity.

Abstract: The present invention relates to a method of near real-time band jamming prevention, which provides a vehicle controller with the ability of examining autonomously the communication band between itself and a remote guidance and control apparatus, so that the vehicle controller can judge the jamming extent suffered by the communication band between the vehicle controller and the remote guidance and control apparatus. Thereby, the vehicle controller can execute corresponding actions in accordance with the judgment result of the method of near real-time band jamming prevention according to the present invention. In particular, when multiple vehicles operate synchronously and operators of the vehicles have no time to handle at the same time, the method of near real-time band jamming prevention according to the present invention provides the vehicle controllers with the ability of judging autonomously the communication band with preferred received signal strength intensity.

Abstract: This invention relates to a robust data fusion procedure of multi-digital surveillance information mounted on an aircraft per se capable of receiving surveillance information of other aircrafts, including traffic information service (TIS), traffic alert and collision avoidance system (TCAS) and automatic dependant surveillance broadcasting (ADSB). The data fusing procedure of the multi-digital surveillance information of this invention is capable of applying data fusion module to provide an effective surveillance data fusion procedure for fusing the data produced by surveillance source (ADSB, TCAS and TIS). The traffic information of the aircraft per se is provided by GNSS while outputting the status information of other aircrafts in the surrounding airspace to the cockpit display traffic information (CDTI) system to enhance airborne security.

Abstract: The invention relates to a kit of a local oscillator of an airborne VHF multimode communication transceiver. The local oscillator of the airborne VHF multimode communication transceiver comprises a temperature compensated crystal local oscillator, a direct digital synthesizer (DDS) and an input/output interface.