Reliability Test System of Digital Predistortion Power Amplifier
A power amplifier and digital pre-distortion technology, applied in the direction of digital circuit testing, electronic circuit testing, etc., can solve the problem that the reliability of the DPD power amplifier cannot be detected
Active Publication Date: 2016-01-27
COMBA TELECOM SYST CHINA LTD
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Problems solved by technology
[0006] In view of this, the embodiment of the present invention provides a reliability test system of a DPD power amplifier to solve the problem that the prior art cannot detect the reliability of the DPD power amplifier in actual operation
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[0016] Embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0017] The embodiment of the present invention aims at the problem that the detection of the DPD power amplifier in the prior art cannot detect the reliability of the DPD power amplifier in actual operation, and proposes a reliability test scheme for the DPD power amplifier. In this scheme, After the DPD power amplifier under test is powered on and initialized successfully, the control unit controls the test unit to input test signals of different carrier modes to the DPD power amplifier under test, and compares the reliability parameters of the output signal of the DPD power amplifier with a predetermined threshold, according to The comparison result determines whether the DPD power amplif...
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The invention discloses a reliability testing system of a DPD power amplifier. The system comprises a controlling unit, a power supplying unit, a testing unit and an acquiring unit. The controlling unit controls the testing unit to input at least two kinds of predetermined test signals, reliability parameters of output signals of a tested DPD power amplifier are obtained, the obtained reliability parameters are compared with a predetermined threshold value, whether the tested DPD has reliability is determined according to the comparison result, signals of different carrier wave modes can be generated in a simulated mode, the reliability parameters of the tested DPD power amplifier are compared and analyzed, therefore, the working situation of the tested DPD power amplifier in actual operating environment can be effectively detected, the reliability of the tested DPD power amplifier can be detected, and the problem that the reliability of a DPD power amplifier cannot be detected in the actual operation in the prior art is solved.
Description
technical field [0001] The invention relates to the field of digital power amplifiers, in particular to a reliability test system for digital predistortion DPD power amplifiers. Background technique [0002] With the rapid development of mobile communication services, people are constantly pursuing greater service capacity and better signal quality, which puts forward higher requirements on the power, linearity and efficiency of mobile communication equipment. Digital Pre-distortion (DPD, Digital Pre-distortion), as a newly emerging linearization technology in recent years, has the characteristics of high efficiency, small size, and is suitable for high-power product applications. Therefore, the power amplifier of the core component of mobile communication equipment is becoming more and more Digital pre-distortion technology has been adopted in many places. [0003] Compared with the traditional power amplifier, DPD power amplifier adds DPD module, up / down conversion module...
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IPC IPC(8): G01R31/317
Inventor 骆云钟伟东晏如意
Owner COMBA TELECOM SYST CHINA LTD