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Method and apparatus for distance measuring equipment (DME/normal) using alternative pulse shapes
Method and apparatus for distance measuring equipment (DME/normal) using alternative pulse shapes
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机译:用于使用替代脉冲形状的距离测量设备(DME / normal)的方法和设备
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摘要
A method for measuring distance includes transmitting a first pair of RF pulses from an airborne interrogator, where the first pair of RF pulses are temporally separated from each other by a first time interval and each of the RF pulses in the first pair of RF pulses has a first pulse waveform. The method also includes receiving a second pair of RF pulses transmitted by a ground transponder. The RF pulses in the second pair of RF pulses have a second pulse waveform characterized by a filtered asymmetric Gaussian function or a smoothed trapezoidal function. The method further includes determining an elapsed time between transmitting the first pair of RF pulses and receiving the second pair of RF pulses and determining a distance between the airborne interrogator and the ground transponder based on at least the elapsed time.
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