CN116593812A - BPSK signal-based multi-channel power amplifier time delay parameter measurement method - Google Patents

BPSK signal-based multi-channel power amplifier time delay parameter measurement method Download PDF

Info

Publication number
CN116593812A
CN116593812A CN202310869892.8A CN202310869892A CN116593812A CN 116593812 A CN116593812 A CN 116593812A CN 202310869892 A CN202310869892 A CN 202310869892A CN 116593812 A CN116593812 A CN 116593812A
Authority
CN
China
Prior art keywords
oscilloscope
delay
cable
power divider
broadband
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310869892.8A
Other languages
Chinese (zh)
Inventor
俞红兵
吴微露
徐云
张孟伯
雷迎科
戴剑华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National University of Defense Technology
Original Assignee
National University of Defense Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National University of Defense Technology filed Critical National University of Defense Technology
Priority to CN202310869892.8A priority Critical patent/CN116593812A/en
Publication of CN116593812A publication Critical patent/CN116593812A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/04—Housings; Supporting members; Arrangements of terminals
    • G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0416—Connectors, terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

The invention provides a multi-channel power amplifier time delay parameter measurement method based on BPSK signals, which belongs to the technical field of power amplifier parameter measurement and comprises the following steps: the output end of the power divider, the input channel of the broadband oscilloscope, the power amplifier to be tested, a plurality of coaxial cables and the cable adapter are given fixed numbers; the BPSK signal source is connected to the power divider, the output port of the power divider is correspondingly or cross-connected with a plurality of input channels of the oscilloscope through serial cables and cable adapters, and the relative time delay among the plurality of input channels is measured; connecting the output end of the power amplifier to a plurality of input channels of a broadband oscilloscope through a plurality of coaxial cables with the same transmission characteristics and a cable adapter with the same transmission characteristics, and measuring relative time delay; and calculating a delay vector to be measured according to an actual measurement delay vector and a coefficient matrix formed by a plurality of groups of actual measurement delay data of the oscilloscope, and further calculating delay parameters of the multichannel power amplifier.

Description

BPSK signal-based multi-channel power amplifier time delay parameter measurement method
Technical Field
The invention belongs to the technical field of power amplifier parameter measurement, and particularly relates to a multi-channel power amplifier time delay parameter measurement method based on a BPSK signal.
Background
At present, the sampling rate and the instantaneous bandwidth of a digital storage oscilloscope are greatly improved, because a BPSK (Binary Phase Shift Keying ) modulation signal has very obvious time domain characteristics, and the time delay of each channel is feasible to directly observe in the time domain by using the digital broadband storage oscilloscope in addition to the high-speed data acquisition and storage capacity of the digital broadband storage oscilloscope.
As shown in fig. 1, the relative delay between the four channels occurs in two main parts: firstly, the transmission characteristic of the power amplifier; and secondly, the time delay, the attenuator, the power divider and the connection line between all the devices of the oscilloscope are inconsistent. The former is exactly what we need to measure, and the latter is an additional error in measurement. When high-precision time difference measurement with nanosecond level or more is performed, the additional error needs to be eliminated by calibration before or during measurement.
Disclosure of Invention
In order to solve the above technical problems, a first aspect of the present invention provides a method for measuring delay parameters of a multi-channel power amplifier based on a BPSK signal, the method comprising the following steps:
step 1, carrying out fixed numbering on each output end of a power divider, each input channel of a broadband oscilloscope, a plurality of power amplifiers to be tested, a plurality of coaxial cables with the same transmission characteristics and cable adapters with the same transmission characteristics;
step 2, connecting a BPSK signal source to a power divider, correspondingly connecting or cross-connecting each output port of the power divider and each input channel of an oscilloscope by using a numbered cable and a cable adapter, and measuring first relative time delay between the output port of the power divider, which is generated by coaxial cables with the same transmission characteristics and the cable adapter with the same transmission characteristics, and a plurality of input channels of the broadband oscilloscope;
step 3, connecting a BPSK signal source to a power divider, connecting an output port of the power divider with an input end of a power amplifier with the same number, connecting an output end of the power amplifier to an input channel with the same number of the broadband oscilloscope through coaxial cables with the same number and the same transmission characteristics and a cable adapter with the same transmission characteristics, and measuring second relative time delay between different channels generated by the power amplifier;
step 4, calculating a delay vector to be measured according to a first actual measurement delay vector formed by a plurality of groups of first relative delay actual measurement data measured by an oscilloscope and a second actual measurement delay vector and coefficient matrix formed by the second relative delay actual measurement data; calculating the time delay parameter of the multichannel power amplifier by using the time delay vector to be detected; wherein the coefficient matrix is a constant matrix composed of constants 0, 1 and-1.
According to the measuring method of the first aspect of the invention, the number of the output ends of the power dividers, the number of the input channels of the broadband oscilloscope and the number of the power amplifiers to be measured are the same.
According to the measuring method of the first aspect of the invention, the number and the number of the coaxial cables with the same transmission characteristics and the cable adapters with the same transmission characteristics are matched with the number of the input channels of the broadband oscilloscope.
The measuring method according to the first aspect of the present invention, the step 2 includes the following sub-steps:
step 2.1, connecting an output port of a power divider and a plurality of input channels of an oscilloscope by using coaxial cables with the same transmission characteristics and cable adapters with the same transmission characteristics with the same numbers according to a mode of corresponding numbers, and measuring relative time delay from the output port of the power divider to the input channels of the broadband oscilloscope by using the broadband oscilloscope;
step 2.2, maintaining the connection correspondence between the output port of the power divider and the coaxial cable and the cable adapter in step 2.1 unchanged, simultaneously changing the connection correspondence between the coaxial cable and the cable adapter and the broadband oscilloscope, connecting the coaxial cable and the cable adapter with the number of 1 to the m-th numbered input port of the broadband oscilloscope, and sequentially connecting the other coaxial cables and the cable adapters with the number of i to the input channel of the broadband oscilloscope with the number of i-1; measuring the relative time delay from the output port of the power divider to the input channel of the broadband oscilloscope by using the broadband oscilloscope;
step 2.3, simultaneously converting connection correspondence between the coaxial cable and the cable adapter and the output port of the power divider and the input port of the broadband oscilloscope according to the following modes: connecting a coaxial cable and a cable adapter with the number i with an output port of a power divider with the number i-1 and an input channel of a broadband oscilloscope with the number i-1, and connecting a last output port of the power divider with an m-th input channel of the broadband oscilloscope by using the coaxial cable and the cable adapter with the number 1; measuring the relative time delay from the output port of the power divider to the input channel of the broadband oscilloscope by using the broadband oscilloscope;
wherein the total number of the input channels is m, m is more than or equal to 2, i is more than or equal to 1 and less than or equal to m.
According to the measuring method of the first aspect of the invention, the channel number is m=4.
According to the measuring method of the first aspect of the present invention, the delay vector to be measured includes: time delay between any two paths of the power divider; the delay between any two input channels of the broadband oscilloscope, the delay between any two coaxial cables and the relative delay between any two channels generated only by the power amplifier.
According to the measuring method of the first aspect of the present invention, the delay vector actually measured by the broadband oscilloscope comprises: and step 2, under a plurality of different connection modes in the step 3, measuring by using a broadband oscilloscope to obtain the time delay of any two input channels.
According to the measuring method of the first aspect of the present invention, the plurality of coaxial cables and the cable connectors have the same transmission characteristics, that is, the same time delay and impedance characteristics.
The method of the invention is based on BPSK signals and a multichannel digital oscilloscope, and adopts a method of multiple cross measurement and one comprehensive operation to obtain the transmission delay between each path of power amplifier of the power amplifier group, thereby improving the measurement accuracy.
The method of the invention is based on BPSK signals and a multichannel digital oscilloscope, and adopts a method of multiple cross measurement and one comprehensive operation to obtain the transmission delay between each path of power amplifier of the power amplifier group, thereby improving the measurement accuracy.
Drawings
FIG. 1 is a schematic diagram of a prior art delay measurement between power amplifier channels;
fig. 2 is a schematic diagram of a delay parameter measurement connection of a 4-channel power amplifier based on BPSK signals according to the present invention.
Where w1-w4 are transmission cable numbers.
Detailed Description
In order to accurately measure the time delay of each path of the power amplifier, the invention provides a method for obtaining the transmission time delay among each path of the power amplifier group by adopting multiple times of cross measurement and one time of comprehensive operation based on the BPSK signal and the multichannel digital oscilloscope, thereby improving the measurement precision.
The following detailed description of specific embodiments of the invention refers to the accompanying drawings.
The first aspect of the present invention provides a method for measuring delay parameters of a multi-channel power amplifier based on a BPSK signal, the method comprising the following steps:
step 1, carrying out fixed numbering on each output end of a power divider, each input channel of a broadband oscilloscope, a plurality of power amplifiers to be tested, a plurality of coaxial cables with the same transmission characteristics and cable adapters with the same transmission characteristics;
step 2, connecting a BPSK signal source to a power divider, correspondingly connecting or cross-connecting each output port of the power divider and each input channel of an oscilloscope by using a numbered cable and a cable adapter, and measuring first relative time delay between the output port of the power divider, which is generated by coaxial cables with the same transmission characteristics and the cable adapter with the same transmission characteristics, and a plurality of input channels of the broadband oscilloscope;
step 3, connecting a BPSK signal source to a power divider, connecting an output port of the power divider with an input end of a power amplifier with the same number, connecting an output end of the power amplifier to an input channel with the same number of the broadband oscilloscope through coaxial cables with the same number and the same transmission characteristics and a cable adapter with the same transmission characteristics, and measuring second relative time delay between different channels generated by the power amplifier;
step 4, calculating a delay vector to be measured according to a first actual measurement delay vector formed by a plurality of groups of first relative delay actual measurement data measured by an oscilloscope and a second actual measurement delay vector and coefficient matrix formed by the second relative delay actual measurement data; calculating the time delay parameter of the multichannel power amplifier by using the time delay vector to be detected; wherein the coefficient matrix is a constant matrix composed of constants 0, 1 and-1.
According to the measuring method of the first aspect of the invention, the number of the output ends of the power dividers, the number of the input channels of the broadband oscilloscope and the number of the power amplifiers to be measured are the same.
According to the measuring method of the first aspect of the invention, the number and the number of the coaxial cables with the same transmission characteristics and the cable adapters with the same transmission characteristics are matched with the number of the input channels of the broadband oscilloscope.
The measuring method according to the first aspect of the present invention, the step 2 includes the following sub-steps:
step 2.1, connecting an output port of a power divider and a plurality of input channels of an oscilloscope by using coaxial cables with the same transmission characteristics and cable adapters with the same transmission characteristics with the same numbers according to a mode of corresponding numbers, and measuring relative time delay from the output port of the power divider to the input channels of the broadband oscilloscope by using the broadband oscilloscope;
step 2.2, maintaining the connection correspondence between the output port of the power divider and the coaxial cable and the cable adapter in step 2.1 unchanged, simultaneously changing the connection correspondence between the coaxial cable and the cable adapter and the broadband oscilloscope, connecting the coaxial cable and the cable adapter with the number of 1 to the m-th numbered input port of the broadband oscilloscope, and sequentially connecting the other coaxial cables and the cable adapters with the number of i to the input channel of the broadband oscilloscope with the number of i-1; measuring the relative time delay from the output port of the power divider to the input channel of the broadband oscilloscope by using the broadband oscilloscope;
step 2.3, simultaneously converting connection correspondence between the coaxial cable and the cable adapter and the output port of the power divider and the input port of the broadband oscilloscope according to the following modes: connecting a coaxial cable and a cable adapter with the number i with an output port of a power divider with the number i-1 and an input channel of a broadband oscilloscope with the number i-1, and connecting a last output port of the power divider with an m-th input channel of the broadband oscilloscope by using the coaxial cable and the cable adapter with the number 1; measuring the relative time delay from the output port of the power divider to the input channel of the broadband oscilloscope by using the broadband oscilloscope;
wherein the total number of the input channels is m, m is more than or equal to 2, i is more than or equal to 1 and less than or equal to m.
According to the measuring method of the first aspect of the invention, the channel number is m=4.
According to the measuring method of the first aspect of the present invention, the delay vector to be measured includes: time delay between any two paths of the power divider; the delay between any two input channels of the broadband oscilloscope, the delay between any two coaxial cables and the relative delay between any two channels generated only by the power amplifier.
According to the measuring method of the first aspect of the present invention, the delay vector actually measured by the broadband oscilloscope comprises: and step 2, under a plurality of different connection modes in the step 3, measuring by using a broadband oscilloscope to obtain the time delay of any two input channels.
According to the measuring method of the first aspect of the present invention, the plurality of coaxial cables and the cable connectors have the same transmission characteristics, that is, the same time delay and impedance characteristics.
The method of the invention is based on BPSK signals and a multichannel digital oscilloscope, and adopts a method of multiple cross measurement and one comprehensive operation to obtain the transmission delay between each path of power amplifier of the power amplifier group, thereby improving the measurement accuracy.
Examples
The devices and equipment required in the measurement are: the system comprises 4 groups of attenuators, 1 power divider with 1 division and 4 division, a plurality of coaxial cables with the same transmission characteristics and the same transmission characteristics, a cable adapter and a 1 four-channel broadband oscilloscope. Each of w1-w4 is the number of a coaxial cable and the cable adapter to which it is connected.
The method for obtaining the oscilloscope reading based on the multi-time cross measurement and obtaining the relative time delay of each path and the calibration parameters of the power amplifier by carrying out one-time operation according to the obtained parameters is described by a 4-channel example. The devices and equipment required in the measurement are: 4 sets of attenuators, 1 power divider of 1 minute and 4 minutes, 13 coaxial cables with similar transmission characteristics and 1 four-channel broadband oscilloscope.
In order to facilitate arithmetic expression, the upper graph is simplified, and the transmission characteristics of each group of cables connected to the power amplifier input end from the power divider output, the cables connected to the attenuator input from the power amplifier output end, the cables connected to the oscilloscope input from the attenuator output and the attenuator are numbered, combined and fixed, and are combined and equivalent to one cable.
The first step, the output end of the power divider, the coaxial cable with similar transmission characteristics, the cable adapter and the input channels of the broadband oscilloscope are sequentially combined into a transmission channel, which is marked as 1, 2, 3 and 4. For the relative time delay between i and j channels on a 1-division 4-power dividerIndicating the relative time delay between the i and j channels on a broadband oscilloscope>And (3) representing. The relative time delay between the ith and the jth cables is +.>And (3) representing. The relative time delay is the coaxial cable with similar transmission characteristics of the power dividerEquivalent time delay of the combination of the cable adapter and the input port of the broadband oscilloscope. The oscilloscope measures the time delay of the ith path relative to the jth path, wherein the different measurement results are respectively obtained by +.>The corresponding relative delay signals are indicated by the superscript L in the figure for designating which of the four graphs A, B, C, D in fig. 2 is specifically, values A, B, C and D, and thus,
(1)
(2)
step two, as in FIG. 2 (A), connecting the BPSK signal source to the power divider, connecting the 1-4 channels of the oscilloscope and the 1-4 ports of the power divider by using cables with the numbers of 1-4 respectively, and then
(3)
(4)
(5)
And a third step of: as shown in FIG. 2 (B), the connection is performed by connecting the 1-4 channels of the oscilloscopes by cables 2, 3, 4, 1 respectively on the basis of the first step, and then there are
(6)
(7)
(8)
Fourth step: as shown in FIG. 2 (C), in the second step, the corresponding relation between the cables and the oscilloscope channels is maintained unchanged, and the cables 2, 3, 4 and 1 are respectively connected to the output ends of the ports 1-4 of the power divider, and then the power divider has
(9)
(10)
(11)
Fifth step: as in FIG. 2 (D), the two ends of the cable with the number of 1-4 are respectively connected to the 1-4 output of the power amplifier group and the 1-4 channel of the oscilloscope, and the two ends are recorded asFor the time delay of the power amplifier i relative to the j path of the power amplifier, the actually measured relative time delay of the ith channel relative to the j path is used with +.>The representation is provided with
(12)
(13)
(14)
Recording the time delay vector to be measured asThe actual measurement delay vector of the oscilloscope isIn combination with (1) to (14), there are
(15)
Wherein the coefficient matrixAnd its inverse arrayRespectively is
（16）
Setting the triggering mode of the oscilloscope as forward pulse Width (Width) triggering, setting the condition that the pulse Width is greater than 60% of the whole period of the carrier wave as triggering, thus obtaining the surrounding phase modulation point signals very stably, and amplifying, widening and uniformly biasing by using software in the oscilloscope, thereby easily obtaining the actual measurementThe relative time delay of all channels of the oscilloscope, the relative time delay between different connecting cables and the relative time delay between the power dividers can be obtained through one-time calculation by substituting the values into the values (15).
The four BPSK signals were actually measured with an oscilloscope with a center frequency of about 50MHz. Because the sampling rate of the oscilloscope is very high at this time, the channel error and the measurement additional delay are counteracted, and the delay parameter measurement of the amplifier group can reach the accuracy of sub-nanosecond level. Even in the whole ultra-short wave frequency range, the method can well meet the requirement of measurement accuracy.
Referring to table 1, table 1 shows test records and calculation results obtained according to a certain test.
TABLE 1 test records and calculated results (units: ns) obtained from a test
Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the embodiment of the present invention, and not for limiting, and although the embodiment of the present invention has been described in detail with reference to the above-mentioned preferred embodiments, it should be understood by those skilled in the art that modifications and equivalent substitutions can be made to the technical solution of the embodiment of the present invention without departing from the spirit and scope of the technical solution of the embodiment of the present invention.

Claims (8)

1. The method for measuring the delay parameter of the multichannel power amplifier based on the BPSK signal is characterized by comprising the following steps:
step 1, carrying out fixed numbering on each output end of a power divider, each input channel of a broadband oscilloscope, a plurality of power amplifiers to be tested, a plurality of coaxial cables with the same transmission characteristics and cable adapters with the same transmission characteristics;
step 2, connecting a BPSK signal source to a power divider, correspondingly connecting or cross-connecting each output port of the power divider and each input channel of an oscilloscope by using a numbered cable and a cable adapter, and measuring first relative time delay between the output port of the power divider, which is generated by coaxial cables with the same transmission characteristics and the cable adapter with the same transmission characteristics, and a plurality of input channels of the broadband oscilloscope;
step 3, connecting a BPSK signal source to a power divider, connecting an output port of the power divider with an input end of a power amplifier with the same number, connecting an output end of the power amplifier to an input channel with the same number of the broadband oscilloscope through coaxial cables with the same number and the same transmission characteristics and a cable adapter with the same transmission characteristics, and measuring second relative time delay between different channels generated by the power amplifier;
step 4, calculating a delay vector to be measured according to a first actual measurement delay vector formed by a plurality of groups of first relative delay actual measurement data measured by an oscilloscope and a second actual measurement delay vector and coefficient matrix formed by the second relative delay actual measurement data; calculating the time delay parameter of the multichannel power amplifier by using the time delay vector to be detected; wherein the coefficient matrix is a constant matrix composed of constants 0, 1 and-1.
2. The measurement method of claim 1, wherein the number of output ends of the power divider, the number of input channels of the broadband oscilloscope and the number of power amplifiers to be measured are the same.
3. The measurement method of claim 2, wherein the number and number of coaxial cables of the same transmission characteristics and cable adapters of the same transmission characteristics are matched with the number of input channels of the broadband oscilloscope.
4. The measurement method according to claim 1, wherein the step 2 comprises the sub-steps of:
step 2.1, connecting an output port of a power divider and a plurality of input channels of an oscilloscope by using coaxial cables with the same transmission characteristics and cable adapters with the same transmission characteristics with the same numbers according to a mode of corresponding numbers, and measuring relative time delay from the output port of the power divider to the input channels of the broadband oscilloscope by using the broadband oscilloscope;
step 2.2, maintaining the connection correspondence between the output port of the power divider and the coaxial cable and the cable adapter in step 2.1 unchanged, simultaneously changing the connection correspondence between the coaxial cable and the cable adapter and the broadband oscilloscope, connecting the coaxial cable and the cable adapter with the number of 1 to the m-th numbered input port of the broadband oscilloscope, and sequentially connecting the other coaxial cables and the cable adapters with the number of i to the input channel of the broadband oscilloscope with the number of i-1; measuring the relative time delay from the output port of the power divider to the input channel of the broadband oscilloscope by using the broadband oscilloscope;
step 2.3, simultaneously converting connection correspondence between the coaxial cable and the cable adapter and the output port of the power divider and the input port of the broadband oscilloscope according to the following modes: connecting a coaxial cable and a cable adapter with the number i with an output port of a power divider with the number i-1 and an input channel of a broadband oscilloscope with the number i-1, and connecting a last output port of the power divider with an m-th input channel of the broadband oscilloscope by using the coaxial cable and the cable adapter with the number 1; measuring the relative time delay from the output port of the power divider to the input channel of the broadband oscilloscope by using the broadband oscilloscope;
wherein the total number of the input channels is m, m is more than or equal to 2, i is more than or equal to 1 and less than or equal to m.
5. The measurement method of claim 4, wherein the total number of input channels m = 4.
6. The method of measuring of claim 4, wherein the delay vector to be measured comprises: delay between any two paths of outputs of the power divider; the delay between any two input channels of the broadband oscilloscope, the delay between any two coaxial cables and the relative delay between any two channels generated only by the power amplifier.
7. The measurement method of claim 6, wherein the broadband oscilloscope measured delay vector comprises: and step 2, under a plurality of different connection modes in the step 3, measuring by using a broadband oscilloscope to obtain the time delay between any two input channels.
8. The method of measuring of claim 1, wherein the plurality of coaxial cables and cable adapters having the same transmission characteristics means that they have the same time delay and impedance characteristics.
CN202310869892.8A 2023-07-17 2023-07-17 BPSK signal-based multi-channel power amplifier time delay parameter measurement method Pending CN116593812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310869892.8A CN116593812A (en) 2023-07-17 2023-07-17 BPSK signal-based multi-channel power amplifier time delay parameter measurement method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310869892.8A CN116593812A (en) 2023-07-17 2023-07-17 BPSK signal-based multi-channel power amplifier time delay parameter measurement method

Publications (1)

Publication Number Publication Date
CN116593812A true CN116593812A (en) 2023-08-15

Family

ID=87612042

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310869892.8A Pending CN116593812A (en) 2023-07-17 2023-07-17 BPSK signal-based multi-channel power amplifier time delay parameter measurement method

Country Status (1)

Country Link
CN (1) CN116593812A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106850037A (en) * 2016-12-21 2017-06-13 西安空间无线电技术研究所 A kind of multichannel transmitting-receiving time delay real-time monitoring system and method with calibration transceiver channel
CN107483129A (en) * 2017-07-28 2017-12-15 西安空间无线电技术研究所 A kind of waveguide cable mixing broadband system and with phase method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106850037A (en) * 2016-12-21 2017-06-13 西安空间无线电技术研究所 A kind of multichannel transmitting-receiving time delay real-time monitoring system and method with calibration transceiver channel
CN107483129A (en) * 2017-07-28 2017-12-15 西安空间无线电技术研究所 A kind of waveguide cable mixing broadband system and with phase method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
钱宇红，王晓翔: "一种四通道GPS 信号模拟器相对时延的测量方法", 《电路与系统学报》, vol. 17, no. 6, pages 96 - 99 *

Similar Documents

Publication Publication Date Title
KR100421277B1 (en) Architecture for rf signal automatic test equipment
US6853198B2 (en) Method and apparatus for performing multiport through-reflect-line calibration and measurement
EP3273256B1 (en) Multi-band noise reduction systems and methods
KR102054874B1 (en) Method for calibrating a test rig
US7235982B1 (en) Re-calculating S-parameter error terms after modification of a calibrated port
EP0326309B1 (en) Method and apparatus for calibrating a lightwave component measurement system
JP3028835B2 (en) Optical component analysis method and apparatus
JP2002217847A (en) Apparatus and method for dynamic range
CN104330777B (en) Self-calibration method for receiving-transmitting channel of active phased array radar
JPH11326413A (en) Measurement error correcting method in network analyzer
Gans Dynamic calibration of waveform recorders and oscilloscopes using pulse standards
CN102324990B (en) Vector reflection coefficient detection circuit only using amplitude detector and detection method thereof
JP2004061514A (en) Test system and test method for optical transceiver
Adam A new precision automatic microwave measurement system
EP0234112B1 (en) Six-port reflectometer test arrangement
CN108011606B (en) Variable passive network noise filter for noise reduction
CN110912607A (en) Multipath radio frequency optical transmission signal amplitude and phase measuring device and measuring and verifying method
CN105606885B (en) A kind of pulse power measurement system based on intermediate frequency substitute technology
CN116593812A (en) BPSK signal-based multi-channel power amplifier time delay parameter measurement method
CN109547382B (en) Amplitude-phase control circuit and multi-channel amplitude-phase control circuit
US6493074B1 (en) Method and apparatus for measuring an optical transfer characteristic
CN106896263B (en) Broadband radio frequency power measurement system
CN110057546A (en) A kind of low cost simple light eye figure measurement method for extinction ratio and system
WO2022256713A1 (en) Multi-input remote heads for sequential testing
CN113992280A (en) Insertion loss calibration device of broadband channel production and measurement clamp and working method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination