| 摘要 |
PURPOSE: A device for measuring and compensating for an output signal distortion of a smart antenna is provided to generate a measured signal by using an extension Walsh code, and to perform signal measurement, thereby measuring a system signal as minimizing an influence on a self traffic signal. CONSTITUTION: A measured signal generator(200) generates an extension Walsh code, is synchronized with a Walsh code synchronous signal of a mobile communication system, and generates and outputs a measured signal. A CDMA signal generator(100) generates and outputs a traffic signal for forming a beam pattern to a position of a communicating terminal. A multiplier(120) multiplies an error compensation value by an output signal of the CDMA signal generator(100), and outputs the multiplied signals. An adder(140) adds an output of the multiplier(120) to the signal of the measured signal generator(200), and outputs the added signals. A wireless unit(150) up-converts the output signal of the adder(140), outputs the up-converted signal, and extracts a portion of each antenna array signal to feedback. An error measurement compensation value calculator(180) measures errors of each antenna array, calculates compensation values, and outputs the values to the multiplier(120). |
