We consider an error model for phased array with gain errors and phase errors, with errors dependent on the phase applied and the antenna index. Under this model, we propose an algorithm for measuring the errors by selectively turning on the antennas at specific phases and measuring the transmitted power. In our algorithm, the antennas are turned on individually and then pairwise for the measurements, and rotation of the phased array is not required. We give numerical results to measure the accuracy of the algorithm as a function of the signal-to-noise ratio in the measurement setup. We also compare the performance of our algorithm with the traditional rotating electric vector (REV) method and observe the superiority of our algorithm. Simulations also demonstrate an improvement in the coverage on comparing the cumulative distribution function (CDF) of equivalent isotropically radiated power (EIRP) before and after calibration.
翻译:我们考虑的是具有增益误差和相位误差的分阶段阵列的错误模型,其误差取决于应用的阶段和天线指数。在这个模型下,我们提出一种算法,通过有选择地在特定阶段打开天线和测量传输功率来衡量误差。 在我们的算法中,天线是单独打开的,然后对准地进行测量,不需要分阶段阵列的旋转。我们给出数字结果,以衡量算法的准确性,作为测量设置中的信号对噪音比率的函数。我们还比较了我们算法的性能与传统的旋转电传动器(REV)方法,并观察我们的算法的优越性。模拟还表明,在校准前后比较等量的同位素辐射功率的累积分配功率(CDF)的覆盖范围有所改善。