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Method and apparatus for implementing high fidelity Doppler phase and time effects in advanced EW stimulus systems

机译:在高级电子战刺激系统中实现高保真多普勒相位和时间效应的方法和装置

摘要

A high fidelity simulation of Doppler that may exactly replicate the phenomenology of the physical world. Compute the linear (Line of sight) kinematics (Slant Range, Radial Velocity, and Radial Acceleration) for each of a multiplicity of emitter-receiver pairs in accordance with exact 3D vector mathematics. Smoothly interpolate the linear kinematic parameters to produce accurate instantaneous values of these parameters at sample rates sufficient to produce negligible error effects in the presence of realistic aircraft maneuvers. Calculate the Doppler frequency, in accordance with well known physics, from the emitter carrier wavelength and a high sample rate. Calculate the Doppler effect as a differential phase (Doppler frequency×sample time) and apply the effect as incremental phase shifts to the carrier signal.
机译:多普勒的高保真模拟可以精确地复制物理世界的现象学。根据精确的3D矢量数学,为多个发射器/接收器对中的每一个计算线性(视线)运动学(倾斜范围,径向速度和径向加速度)。平滑地内插线性运动学参数,以在采样速率下产生这些参数的准确瞬时值,该采样率足以在实际飞机操纵下产生可忽略不计的误差影响。根据众所周知的物理学,从发射器载波波长和高采样率计算多普勒频率。将多普勒效应计算为差分相位(多普勒频率×采样时间),并将其作为增量相移应用于载波信号。

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