| 摘要 |
<P>PROBLEM TO BE SOLVED: To make multiwave environment reproduction and monitoring realized at the same time without changing the configuration of an existing multiwave environment reproduction system. <P>SOLUTION: The multiwave environment reproduction system comprises a pseudo base station device which outputs a downlink signal while being distributed over N channels; a signal monitoring device which generates and outputs a downstream monitoring signal, acquires an upstream monitoring signal, and compares it with the downstream monitoring signal; a signal control device including an MIMO processing unit which acquires the distributed downlink signal and downstream monitoring signal to generate an M-channel composite signal and outputs it, an attenuation unit which acquires the M-channel composite signal and attenuates it every channel before being output, and a delay unit which acquires the attenuated M-channel composite signal and delays it every channel before being output; and an anechoic chamber including M pieces of a probe antenna which acquires the delayed M-channel composite signal and propagates it as a radio wave from different spatial coordinates every channel and a monitoring antenna which acquires the propagated radio wave and outputs it as an upstream monitoring signal. <P>COPYRIGHT: (C)2012,JPO&INPIT |
