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Amplification system and amplification method for video output signal of radio frequency power probe

A technology of radio frequency power and video output, which is applied to the components of TV systems, TV, image communication, etc., can solve the problems of high background noise in waveform diagrams, transmission power and transmission waveforms that cannot be tested, etc., and achieve the effect of wide application

Active Publication Date: 2017-05-24
深圳东昇射频技术有限公司
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a method that solves the problem that the transmission waveform with low transmission power of wireless products cannot be tested or the background noise of the waveform diagram of the test is too high and does not meet the test requirements. It is applied in the field of standard testing of wireless products. widely

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  • Amplification system and amplification method for video output signal of radio frequency power probe

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Embodiment Construction

[0029] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0030] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0031] Such as figure 1 As shown, (1) Calibration: the amplification factor of the programmable amplifier 2 is controlled by the lower computer controller 10, and the output voltage of the digital-to-analog conversion chip 9 is adjusted at the same time, and the reference voltage pin of the programmable amplifier 2 is changed through the operational amplifier following the circuit 7 level, so that the output level of the programmable amplifie...

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Abstract

The invention discloses an amplification system and an amplification method for a video output signal of a radio frequency power probe. The system comprises a detector, a programmable amplifier, a first filter circuit, a data collector, a USB expansion hub, a computer, an operational amplifier follower circuit, a second filter circuit, a digital-to-analogue conversion chip, a lower computer controller and a storage, wherein the programmable amplifier is installed between the detector and the data collector, the first filter circuit is connected between the programmable amplifier and the data collector, the detector is connected with the computer via the USB expansion hub, the data collector is connected with the USB expansion hub via a USB, and the USB expansion hub is connected with the computer via the USB. According to the system and the method provided by the invention, the problem that the transmission waveforms with low transmission power of wireless products cannot be tested or the background noise of oscillogram under test is too high to meet a test requirement is solved, so that the system and the method can be widely applied to the field of standard tests of the wireless products.

Description

technical field [0001] The invention relates to the field of radio frequency automatic testing of wireless communication products, in particular to a video output signal amplification system and an amplification method of a radio frequency power probe. Background technique [0002] In the field of radio frequency testing of wireless products, in addition to testing its radio frequency transmission power, wireless products also need to test its transmission power waveform. Generally, the radio frequency power probe is used to test its transmission power, and the measured power change is converted into an electrical signal, which is output by its video port, and then directly converted into a digital signal by the collector through a digital-to-analog conversion method, and then transmitted to the The computer draws the transmission waveform of the wireless transmission power of the product under test. [0003] There are following deficiencies in above-mentioned technology: ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/14
Inventor 戴林军盛俊陆馗枢
Owner 深圳东昇射频技术有限公司
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