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PXI bus structure-based radio frequency test unit

A radio frequency test and bus technology, applied in the field of electronic technology/communication, can solve the problems of measurement error, affecting the accuracy of test results, etc., and achieve the effect of strong portability, improving test accuracy and test efficiency, and speeding up data transmission speed.

Active Publication Date: 2013-10-23
THE STATE RADIO MONITORING CENT TESTING CENT +1
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Problems solved by technology

If the link is manually loaded and tested, measurement errors will be introduced, which will affect the accuracy of the test results

Method used

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  • PXI bus structure-based radio frequency test unit

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Embodiment Construction

[0016] A kind of radio frequency test unit based on PXI bus framework, such as figure 1 As shown, it mainly includes a digital control processor S3C2440, a 32-bit, 33MHz PXI bus with a maximum peak transfer rate of 132MB / s, a 6-stage coaxial switch, a first high-pass filter, a second high-pass filter, and a low-pass filter filter, the first notch filter, the second notch filter, the third notch filter, the first amplifier and the second amplifier, wherein the digital processor S3C2440 is used to control the opening and closing of the 6-level coaxial switch through the PXI bus The detected signal is connected to the first high-pass filter, the second high-pass filter and the low-pass filter through the first-stage coaxial switch, and the filtered signal is then connected to the notch wave through the second-stage and third-stage coaxial switches. The notched signal is connected to the first amplifier and the second amplifier through the fourth-level coaxial switch and the fifth...

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Abstract

A PXI bus structure-based radio frequency test unit mainly comprises an embedded image control processor S3C2440, a PXI bus, 6 grades of coaxial switches, a first high-pass filter, a second high-pass filter, a low-pass filter, a first wave trap, a second wave trap, a third wave trap, a first magnifier and a second magnifier. The PXI bus structure-based radio frequency test unit solves the problem that different test projects need different signal processing paths in the test process of the radio frequency terminal equipment, can perform system integrating on all test links of approved radiation disturbance and radiation stray indexes, avoids the error brought by the manual test and is capable of improving the test accuracy and test efficiency.

Description

technical field [0001] The invention belongs to the field of electronic technology / communication, and relates to a radio frequency test unit based on a PXI bus framework, which is used to verify the switching unit of the radiation disturbance and radiation spurious test system, and is especially used in the radio frequency index test and integration of the radio frequency terminal for verifying radiation spurious wireless terminals Build the test system. Background technique [0002] Conventional terminal radio frequency automatic test system refers to the automatic test system that adopts computer control to automatically complete call establishment, link switching, signal measurement, data calculation and processing, and output test results. It is mainly used in wireless terminal radio frequency index test and integrated test system construction , including TD-SCDMA, GSM, WLAN, WCDMA, CDMA and Bluetooth wireless terminal radio frequency index test and automatic test system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B17/30
Inventor 宋起柱王俊峰许巧春王文俭
Owner THE STATE RADIO MONITORING CENT TESTING CENT
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