Fading simulator and fading simulation method

摘要

A fading simulator is provided, which includes a noise generator that generates an additive white Gaussian noise signal, receives a test signal to be input to a mobile communication terminal as a test target, and adds, to the test signal, a radio wave scattering effect, using the additive white Gaussian noise signal. The fading simulator is provided with setting means for setting for causing the noise generator to generate a same additive white Gaussian noise signal as the additive white Gaussian noise signal in the first test, when a first test is performed on the mobile communication terminal, and also for setting for causing the noise generator to generate the additive white Gaussian noise signal of the predetermined level when a second test for re-simulating the first test is performed after the first test.

主权项

1. A fading simulator including a noise generation unit that generates an additive white Gaussian noise signal, and configured to receive a test signal to be input to a mobile communication terminal as a test target, and to add, to the test signal, a radio wave scattering effect, using the additive white Gaussian noise signal, comprising:
a setting module configured to cause the noise generation unit to generate an additive white Gaussian noise signal of a predetermined level, when a first test is performed on the mobile communication terminal, the setting module also setting for causing the noise generation unit to generate the same additive white Gaussian noise signal as the additive white Gaussian noise signal in the first test, when a second test that re-simulates the first test is performed after the first test; a uniform random number generation module configured to sequentially generate uniform random numbers, the uniform random numbers being determined uniquely in accordance with clock signals when predetermined data is set; and a normal random number transform module configured to transform, into normal random numbers, the uniform random numbers generated by the uniform random number generation means; the setting module having: a data setting module configured to set the predetermined data in the uniform random number generation module, the data setting module setting the predetermined data, set in the first test, in the uniform random number generation module when the second test is performed.