Airborne communication system voice evaluation equipment
A technology for communication systems and evaluation equipment, applied in wireless communication, electrical components, network topology, etc., can solve problems such as inability to perform voice quality, small number of tests, evaluation conditions, etc., and achieve low cost, high efficiency, and convenient use Effect
Inactive Publication Date: 2013-07-10
10TH RES INST OF CETC
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[0011] b) The number of simultaneous tests is small, and foreign voice detection equipment can only perform end-to-end tests from earphones to microphones, but cannot evaluate the voice quality between different detection points on the entire voice path
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[0026] refer to figure 1 . In the airborne communication system voice evaluation equipment described in the following embodiments, the voice detection port of the aircraft is connected to the matching network through the cable of the evaluation equipment interface, and the interface matching network, the collector, the evaluation module and the control platform constitute the internal modules of the equipment, wherein The interface matching network introduces the voice signal line of the airborne communication system into the evaluation equipment, the collector converts the analog voice signal on the voice signal line into a digital voice signal according to the configuration, the evaluation module calculates the voice quality, and the control platform is used to provide control and real testing Condition.
[0027] The dedicated cable of the voice evaluation equipment is connected to the airborne communication system, and the physical form of the interface is determined by th...
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The invention provides airborne communication system voice evaluation equipment comprising an interface matching network and a manipulation platform of an airborne communication system connected with the airborne communication system voice evaluation equipment. The interface matching network is connected with the manipulation platform through a collector and an evaluation module, the collector collects signals from the interface matching network and converts analog voice signals on a voice signal line connected with the interface matching network according to line connection relation arranged on the manipulation platform into data voice signals, the data voice signals are sent to the evaluation module for evaluation, the evaluation module carries out normalization processing and signal classification of the collector according to configuration of the manipulation platform, and an MOS value, relative to a reference signal, of a distortion signal is figured out through comparison of the reference signal and the distortion signal. The airborne communication system voice evaluation equipment can evaluate voice quality among communication system multi-path voice accesses, multipoint voice and different detection points, can be compatible with voice quality evaluation equipment for testing different standard voice interfaces simultaneously, and solves the problem of evaluation of the voice quality among different detection points on the voice accesses.
Description
technical field [0001] The invention relates to a device capable of evaluating the overall performance of an airborne voice communication system. Background technique [0002] Voice quality evaluation can be divided into two categories from the evaluation subject: subjective evaluation and objective evaluation. Subjective evaluation is based on people as the main body to evaluate the quality of speech. Although this method is relatively complicated, since people are the final recipients of speech, this evaluation should be a true reflection of speech quality. The most widely used subjective evaluation method is mean opinion score (MOS, mean opinion score). The advantage of subjective evaluation is that it conforms to people's perception of voice quality, but the disadvantage is that it is greatly influenced by people's subjectivity, and it is time-consuming, laborious and inconvenient to use. For this reason, people have studied the objective method of voice quality evalua...
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IPC IPC(8): H04W24/08H04W84/06
Inventor 雷国志陈艳芳卓磊
Owner 10TH RES INST OF CETC