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A Pulse Power Measurement System Based on IF Substitution Technology

A pulse power and measurement system technology, which is applied in the direction of measuring devices, measuring electric power, measuring electric variables, etc., can solve the problems of large influence of pulse duty cycle of pulse signal, influence of fast edge pulse power, etc., and achieve the effect of improving measurement accuracy

Active Publication Date: 2018-07-06
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Problems solved by technology

[0004] There are many limitations in using the sampling comparison method for pulse power measurement. First, the measurement of the pulse signal by the continuous wave power meter is greatly affected by the pulse duty cycle; The measurement of pulse power has a large impact on

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  • A Pulse Power Measurement System Based on IF Substitution Technology
  • A Pulse Power Measurement System Based on IF Substitution Technology
  • A Pulse Power Measurement System Based on IF Substitution Technology

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Embodiment Construction

[0027] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0028] Such as image 3 As shown, the present invention discloses a pulse power measurement system based on intermediate frequency substitution technology. The system includes a measured pulse input interface, a local oscillator signal input interface, a mixer, a directional coupler, a programmable attenuator, a first power device, the second power divider, the measured pulse power output interface, the first mixed signal output interface and the second mixed signal output interface; the input end of the directional couple...

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Abstract

The present invention discloses a pulse power measurement system based on the intermediate frequency alternative technology. The system comprises a measured pulse input interface, a local oscillator signal input interface, a mixer, a directional coupler, a programmable control attenuator, a first power splitter, a second power splitter, a measured pulse power output interface, a first mixed signal output interface, and a second mixed signal output interface. The technical scheme of the invention is more suitable for the measurement of higher frequency band pulse power, the dependence on microwave device frequency band by the pulse power measurement can be effectively reduced, and the uncertainty of the pulse power measurement is raised.

Description

technical field [0001] The invention relates to a power measurement system, in particular to a pulse power measurement system based on intermediate frequency substitution technology. Background technique [0002] Pulse power measurement is a form of microwave power measurement, and it is a measurement technology gradually developed due to the increasing application of pulse modulation signals. In recent years, with the continuous increase of the carrier frequency of the pulse modulation signal, due to the limitation of the bandwidth of the microwave device, the difficulty of measuring the pulse power has been increasing. At present, the pulse power standard for pulse power measurement in China mainly adopts the sampling comparison method, such as figure 1 As shown, the pulse-modulated microwave signal and an auxiliary amplitude-adjustable continuous wave signal are respectively sampled and detected by a high-speed radio frequency switch, and completed by amplitude compariso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R21/00
CPCG01R21/00
Inventor 刘挺杨绪军侯海娇杨琳张萌
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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