Test device for testing the transmission quality of a radio device

摘要

The invention relates to a test device for testing the transmission quality of radio devices by integrating a noise generating device in the transmission chain of the test device. To this end, data to be transmitted are imaged on individual partial data streams modulated onto signals associated with the partial data streams and having different carrier frequencies. At this point in the transmission chain, a noise proportion for at least a part of the signals is added to one signal each of a carrier frequency, in order to allow frequency-selective control of the noise proportions added to the signals of the carrier frequencies. The resulting noisy signals and non-noisy signals of the carrier frequencies are transmitted by a transmission device, and a response signal sent back by a radio device to be tested is received by a receiving device. An analysis device evaluates the received response signal.

主权项

1. A test device for testing a radio device, comprising:
an imaging device configured to image information to be transmitted onto various signals differing with regard to the carrier frequency; a noise-generating device configured for the addition of one frequency-dependent noise component to a signal of a carrier frequency, wherein a step function is a presentation of the frequency-dependent noise components per carrier frequency, and wherein a certain noise component corresponds to a certain carrier frequency, and this certain noise component is added to the certain corresponding carrier frequency; a transmission device configured to transmit the resulting noisy signals and non-noisy signals of the various carrier frequencies to the radio device; a receiving device configured to receive a response signal sent back by the radio device in response; and an analysis device configured to evaluate the response signal, wherein the analysis device comprises a comparison device configured to compare the qualitatively best carrier frequencies extracted from the response signal with anticipated, qualitatively best carrier frequencies, and wherein the anticipated, qualitatively best carrier frequencies are determined from the frequency-dependent noise components added to the carrier signals.