WO2016197896A1 - 一种测试方法、测试装置、控制方法及控制系统 - Google Patents

一种测试方法、测试装置、控制方法及控制系统 Download PDF

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Publication number
WO2016197896A1
WO2016197896A1 PCT/CN2016/085005 CN2016085005W WO2016197896A1 WO 2016197896 A1 WO2016197896 A1 WO 2016197896A1 CN 2016085005 W CN2016085005 W CN 2016085005W WO 2016197896 A1 WO2016197896 A1 WO 2016197896A1
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Prior art keywords
drain current
power amplifier
target
test
module
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PCT/CN2016/085005
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English (en)
French (fr)
Inventor
吴建锋
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中兴通讯股份有限公司
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Publication of WO2016197896A1 publication Critical patent/WO2016197896A1/zh

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    • 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
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer

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  • the present application relates to, but is not limited to, the field of communications, and in particular, to a test method, a test device, a control method, and a control system.
  • microwave communication technology signals with large bandwidth and peak-to-average ratio are widely used in microwave baseband, which puts high requirements on the use of power amplifiers for microwave transmitters: firstly, it can meet the peak-to-average ratio requirements. The maximum transmit power, while meeting the signal-to-noise ratio requirements of large bandwidth requirements.
  • Power amplifiers operate in different application scenarios requiring different voltage and current configurations.
  • the typical configuration given by the current manufacturer is to obtain maximum power, ignoring the influence of other factors on the power amplifier. Therefore, in order to find the best working point that can be reasonably utilized, downstream manufacturers need to manually traverse the electrical performance of different combinations of voltage and current working state power amplifiers, and search for the test result data to make the whole machine as normal as possible. During use, find the appropriate power amplifier parameters in the optimization trend curve to achieve the best linearity and power consumption of the whole machine.
  • the manual power amplifier test has the problems of high labor cost, low efficiency and low accuracy.
  • the main technical problem to be solved by the embodiments of the present invention is to provide a test method, a test device, a control method, and a control system, which solve the problem of high labor cost and efficiency in testing and applying different states of the power amplifier by using the manual. And the problem of low accuracy.
  • a test device includes: a control module and a performance parameter test module.
  • the control module is configured to acquire a target drain current I to be tested by the power amplifier, and control a gate voltage of the power amplifier to match an actual drain current I0 of the power amplifier with the target drain current I, and Sending a test notification to the performance parameter test module; and setting to acquire the next target drain current I of the power amplifier after the performance parameter test module is tested, until all target drain currents I are obtained.
  • the performance parameter testing module is configured to test performance parameters of the power amplifier according to the test notification.
  • matching the actual drain current I0 of the power amplifier with the target drain current I includes: the actual drain current I0 and the target drain current I satisfy the following relationship: I- ⁇ I1 ⁇ I0 ⁇ I + ⁇ I2, the ⁇ I1 and ⁇ I2 being a current adjustment factor of 0 or more.
  • the device further includes a voltage conversion module.
  • the voltage conversion module is configured to cooperate with the control module to adjust a gate voltage of the power amplifier according to the target drain current I and an actual drain current I0.
  • the voltage conversion module cooperates with the control module to adjust the gate voltage of the power amplifier according to the target drain current I and the actual drain current I0.
  • the control module is configured according to the target drain current. I and the actual drain current I0 input a gate adjustment voltage to the voltage conversion module, and the voltage conversion module converts the gate adjustment voltage and inputs the power amplifier.
  • adjusting the gate voltage of the power amplifier according to the target drain current I and the actual drain current I0 further includes: the control module according to the target drain current I and the actual drain current I0 a relationship between the gate voltage is adjusted, and detecting whether the adjusted actual drain current I0 matches the target drain current I, if the adjusted actual drain current I0 and the target drain If the pole current I matches, the adjustment of the gate voltage is stopped; if the adjusted actual drain current I0 does not match the target drain current I, the gate voltage is continuously adjusted until the actual drain The pole current I0 matches the target drain current I.
  • the apparatus further includes a current detecting module configured to detect an actual drain current I0 of the power amplifier and transmit the actual drain current I0 to the control module.
  • a current detecting module configured to detect an actual drain current I0 of the power amplifier and transmit the actual drain current I0 to the control module.
  • the device further includes a statistics module, the statistics module is configured to acquire and store a correspondence between the target drain current I and the performance parameter.
  • the device further includes a temperature detecting module, the temperature detecting module is configured to detect an ambient temperature of the power amplifier at all of the target drain current I, and send the ambient temperature to the
  • the control module is further configured to send the ambient temperature to the statistics module; the statistics module is further configured to store the ambient temperature and the target drain current I correspondingly.
  • the performance parameter testing module includes a spectrum analyzer sub-module and a power meter sub-module
  • the performance parameter includes a linear indicator and a saturated output power
  • the spectrum analyzer sub-module is configured to acquire the linear indicator
  • the power The meter module is configured to obtain the saturated output power.
  • a control system includes a power amplifier, a receiver, a control device, and the test device.
  • the test device is configured to obtain a correspondence between a target drain current I of the power amplifier and a performance parameter.
  • the receiver is configured to receive and determine a quality of a signal emitted by the power amplifier and to transmit a determination result to the control device.
  • the control device is configured to adjust a drain current of the power amplifier according to a quality of a signal emitted by the power amplifier received and determined by the receiver and the corresponding relationship.
  • a test method that includes:
  • the test device obtains the target drain current I to be tested by the power amplifier.
  • the test device controls a gate voltage of the power amplifier to match an actual drain current I0 of the power amplifier with the target drain current I.
  • the test device tests performance parameters of the power amplifier.
  • the test device acquires the next target drain current I to be tested of the power amplifier, and repeats the above steps until the test of all target drain currents I is completed.
  • the actual drain current I0 of the power amplifier is matched with the target drain current I, and the actual drain current I0 and the target drain current I satisfy the following relationship: I- ⁇ I1 ⁇ I0 ⁇ I + ⁇ I2, the ⁇ I1 and ⁇ I2 being a current adjustment factor of 0 or more.
  • the method further includes: adjusting a gate voltage of the power amplifier according to the target drain current I and the actual drain current I0.
  • the adjusting the gate voltage of the power amplifier according to the target drain current I and the actual drain current I0 includes: the testing device is configured according to the target drain current I and the actual drain current I0 Relationally adjusting the gate voltage, and detecting whether the adjusted actual drain current I0 matches the target drain current I, if the adjusted actual drain current I0 and the target drain current I Matching, then stopping adjusting the gate voltage; if the adjusted actual drain current If the current I0 does not match the target drain current I, the gate voltage is continuously adjusted until the actual drain current I0 matches the target drain current I.
  • the method further includes: after the testing device tests the performance parameter of the power amplifier, acquiring and storing a correspondence between the target drain current I and the performance parameter.
  • the method further includes: after the testing device acquires the target drain current I and the actual drain current I0 currently being tested by the power amplifier, the testing device detects and stores all the target drain currents. The ambient temperature at which the power amplifier is placed.
  • a control method comprising the test method described above.
  • the method further includes:
  • the receiver acquires and determines the quality of the output signal of the power amplifier.
  • the receiver transmits a determination result of the quality of the output signal of the power amplifier to the control device.
  • the control device adjusts a drain current of the power amplifier according to the determination result and the correspondence.
  • a computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the test method and the control method.
  • the beneficial effects of the embodiments of the present invention are:
  • the embodiment of the present invention provides a testing apparatus and method, which adjusts the drain current of the power amplifier by adjusting the gate voltage of the power amplifier, when the actual drain current and the target When the drain current is matched, the test device stops adjusting the gate voltage, and then starts the performance test of the power amplifier. After the performance test under the target drain current is completed, the test device continues to adjust the gate voltage of the power amplifier to perform the next A performance test of the power amplifier corresponding to the target drain current until the performance test of all target drain currents is completed, so that the test device automatically performs the performance test of the power amplifier under different states, saving manpower and ensuring the efficiency and accuracy of the test.
  • the present invention also provides a control system and method.
  • the control system includes the above test device, the test device is configured to obtain a correspondence between a target drain current and a performance parameter of the power amplifier; and the control system obtains the output of the power amplifier. After the signal, the quality of the output signal is Off, then the drain current of the power amplifier is adjusted by the determination result and the corresponding relationship between the drain current and the target performance parameters of the power amplifier to achieve optimal operation state, in full Under the premise of working requirements of the power amplifier, the drain current of the power amplifier is minimized, which effectively saves resources and improves efficiency.
  • FIG. 1 is a schematic structural diagram of a testing apparatus according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic structural diagram of a control system according to Embodiment 2 of the present invention.
  • FIG. 3 is a flowchart of a testing method according to Embodiment 3 of the present invention.
  • Embodiment 4 is a flowchart of a control method according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic structural diagram of another testing apparatus according to Embodiment 5 of the present invention.
  • FIG. 6 is a flowchart of another testing method according to Embodiment 5 of the present invention.
  • FIG. 1 is a schematic structural diagram of a testing apparatus according to an embodiment of the present invention. Referring to FIG. 1
  • the testing device 10 in this embodiment includes: a control module 101, a performance parameter testing module 102;
  • the control module 101 is configured to obtain the target drain current I to be tested by the power amplifier, and then control the gate voltage of the power amplifier to match the current actual drain current I0 with the target drain current.
  • the control module 101 sends a test notification to the performance parameter test module 102, causing the performance parameter test module 102 to begin testing the performance parameters of the power amplifier; and setting to continue to obtain the next target drain of the power amplifier after the performance parameter test module 102 is tested.
  • control module 101 acquires all the target drain currents I and the performance parameter test module 102 completes testing the performance parameters of the power amplifiers corresponding to all the target drain currents I
  • using the control module to achieve the above functions can achieve power Automated testing of the different operating states of the amplifier avoids the cumbersome manual testing and reduces test time.
  • the performance parameter testing module 102 is configured to test the performance parameter of the power amplifier after receiving the test notification sent by the control module 101, and notify the control module 101 after the test is completed, and the test sent by the performance parameter testing module 102 through the control module 101.
  • the notification automatically tests the performance parameters of the power amplifier, avoiding the cumbersome manual test and improving the test efficiency.
  • the control module 101 realizes that the actual drain current I0 matches the target drain current I.
  • the relationship between the actual drain current I0 and the target drain current I satisfies the following inequality: I- ⁇ I1 ⁇ I0 ⁇ I+ ⁇ I2, wherein , ⁇ I1 and ⁇ I2 are current adjustment factors greater than or equal to 0, ⁇ I1 and ⁇ I2 may be equal or unequal, and this embodiment may alternatively be equal to ⁇ I1 and ⁇ I2; if ⁇ I1 is equal to ⁇ I2 and equal to zero, indicating target drain current I It is equal to the actual drain current I0; during the actual adjustment process, the actual drain current I0 cannot be exactly equal to the target current I, so the current adjustment factor is set to a reasonable value area for the actual drain current I0, actually The value of the drain current I0 in the value range satisfies the error requirement; the current adjustment factor may also set the target drain current I to a range value, and any value of the actual drain current I0, As long as it is within the
  • control module 101 is preferably a PC and a central processing unit.
  • the embodiment further includes a voltage conversion module 105 and a voltage conversion module.
  • the 105 is configured to convert the gate adjustment voltage outputted by the control module 101 into an input power amplifier, and the gate adjustment voltage is a digital signal. After passing through the voltage conversion module 105, the digital signal becomes an analog signal and can be directly used by the power amplifier.
  • the process of adjusting the gate voltage is: adjusting the gate voltage according to the target drain current I and the actual drain current I0. After the adjustment, comparing the changed actual drain current I0 with the target drain current I After the actual drain current I0 and the target drain current I match, the adjustment of the gate voltage is stopped; if the actual drain current I0 and the target drain current I do not match, according to the changed actual drain current I0 and the target drain The relationship of current I continues to adjust until the actual drain current I0 matches the target drain current I.
  • the adjustment mode in this embodiment is a stepwise adjustment, that is, the gate voltage is adjusted according to the same difference, so that the actual drain current I0 approaches the target drain current I; of course, when adjusting, Any interval adjustment can be made to match the actual drain current I0 with the target drain current I.
  • the input power of the power amplifier can be zero, and the target drain current I tested is a different quiescent current.
  • the input power of the power amplifier can also be non-zero, and the power of the corresponding size can be input.
  • the target drain current I tested is a different constant current, and when the drain current of the power amplifier changes with the outside world, the control module 101 The current can be pulled back to the constant current in real time through the above control mode. After a constant current electrical performance test is completed, the control module 101 will perform the real-time approximation of the next constant current, and so on, to complete the electricity of different constant current states. Performance traversal test.
  • the current detecting module 103 is further configured to detect the current actual drain current I0 of the power amplifier, and send the actual drain current I0 to the control module 101, so that the control module 101 is for the current actual The relationship between the drain current I0 and the target drain current I adjusts the gate voltage of the power amplifier accordingly.
  • the statistic module 104 is further configured to acquire and store the target drain current I and the performance parameter corresponding to the target drain current I measured by the performance parameter test module 102, and then establish and store A graph of a table and/or a correspondence relationship between a target drain current I and a performance parameter, and a map of the correspondence relationship and/or a map of the corresponding relationship can intuitively reflect the target drain current I and the performance parameter
  • the correspondence between the users is convenient for the user to view or for the control system to call.
  • the testing device further includes a temperature detecting module 106 configured to detect power at all target drain currents I The ambient temperature at which the amplifier is located, and the obtained temperature data is sent to the control module 101.
  • the control module 101 is further configured to send the detected ambient temperature to the statistics module 104.
  • the statistics module 104 is further configured to correspond to the storage environment temperature and the target leak.
  • the pole current I can also store a relationship table and/or a relationship diagram of performance parameters of different states of the power amplifier corresponding to all ambient temperature values.
  • performance parameters of the power amplifier such as linearity index, saturated output power, voltage, current, efficiency, input and output characteristics, gain, output standing wave, flatness, harmonic suppression, spur suppression, and intermodulation characteristics.
  • Phase, group delay, amplitude modulation/phase modulation, and the performance parameters of the main selection test in this embodiment include linear index and saturated output power.
  • the linear index and the main consideration are considered. Saturated output power these two parameters.
  • the performance parameter testing module 102 further includes a spectrum analyzer sub-module 1021 and a power meter sub-module 1022.
  • the spectrum analyzer sub-module 1021 includes a spectrum analyzer.
  • the power meter sub-module 1022 includes a power meter.
  • the spectrum analyzer sub-module 1021 detects a linear indicator by using a spectrum analyzer.
  • the linearity indicator includes third-order intermodulation, fifth-order intermodulation, and seventh-order intermodulation
  • the power meter sub-module 1022 uses the power meter to detect the saturated output power.
  • the correspondence between the target drain current I and the performance parameter established by the statistical module 104 includes a correspondence table and/or a correspondence diagram between the target drain current I and the linear index, and a target drain current I and a saturated output. Between power Correspondence table and/or correspondence diagram.
  • the correspondence between the target drain current I and the performance parameter obtained by the statistic module 104 may be made into a relationship table and/or a relationship diagram, and the relationship table and/or the relationship diagram may further include The temperature corresponding to the test state; the correspondence table and/or the correspondence diagram between the target drain current I and the linearity index, and the correspondence table and/or correspondence between the target drain current I and the saturated output power
  • the map can include the measured ambient temperature.
  • the current protection module is further provided; when the current actual drain current I0 measured by the current detecting module 103 exceeds a preset threshold, The control module 101 sends an instruction to the current protection module to cut off the current.
  • the current protection module receives the command, the current is cut off; when the instantaneous current measured by the current detection module 103 is too large, the control module 101 has no time to react, and the current protection The module will cut off the power directly to ensure the safety of the equipment.
  • the test device in this embodiment may be a single test device unit, or may be disposed in various test terminals.
  • the power amplifier in this embodiment may be a single power amplifier device, or may be an amplification module disposed in a plurality of devices.
  • FIG. 2 is a schematic structural diagram of a control system 20 according to the embodiment. Referring to FIG. 2:
  • the control system 20 in this embodiment includes a power amplifier 201, a receiver 202, a control device 203, and the test device 10 in the first embodiment;
  • the receiver 202 is arranged to receive the transmitted signal of the power amplifier 201, then determine the quality of the signal, and transmit the result of the determination to the control device 203.
  • control device 203 After receiving the determination result sent by the receiver 202, the control device 203 adjusts the drain current according to the determination result and the corresponding relationship measured by the testing device 10, and adjusts the working state of the power amplifier to be optimal.
  • the quality of the signal received by the receiver 202 in this embodiment can be characterized by an average bit error rate; of course, other criteria can be used for characterization.
  • the adjustment process of the control device 203 in this embodiment is that if the result obtained by the receiver 202 is that the quality of the signal sent by the power amplifier 201 is poor, such as the average bit error rate is poor, and the link is not If it is determined, the linear index of the output signal is deteriorated, and the control device 203 selects a state in which the linear index of the power amplifier 201 is better to adjust the drain current correspondingly; if the average bit error rate is good, and the link is unreachable, then the judgment is made. If the saturated output power of the output signal is not good, the control device 203 selects a state in which the power amplifier 201 has a good saturation output power to adjust the drain current accordingly.
  • the manner in which the drain current of the power amplifier is adjusted is preferably to adjust the gate voltage of the power amplifier.
  • FIG. 3 is a flowchart of a testing method provided by this embodiment. Referring to FIG. 3, the testing method includes steps S301-S304:
  • the test device obtains a target drain current I to be tested by the power amplifier.
  • the test device controls a gate voltage of the power amplifier to match an actual drain current I0 of the power amplifier with a target drain current I.
  • This step can be adjusted by the control module 101 to adjust the actual drain current I0 of the power amplifier to the target drain current I; it should be understood that other adjustment strategies are not used to adjust the drain current of the power amplifier. size.
  • the test device tests performance parameters of the power amplifier.
  • the test device acquires the next target drain current I to be tested of the power amplifier, and repeats the above steps until all the target drain currents I are tested.
  • the control module 101 After the performance parameter test module 102 completes the test of the performance parameter, the control module 101 sends a signal, and after receiving the signal, the control module 101 continues to adjust the gate voltage to make the actual drain current I0 and the next target drain current I.
  • the matching, performance parameter testing module 102 continues to test the performance parameters of the next target drain current I, and the statistical module 104 continues to establish the correspondence between the next target drain current I and the performance parameters until all target drain currents I are completed. Performance parameter test under.
  • the input power of the power amplifier can be zero, and the target drain current I tested is a different quiescent current.
  • the input power of the power amplifier can also be non-zero, and the power of the corresponding size can be input.
  • the target drain current I tested is a different constant current, and when the drain current of the power amplifier changes with the outside world, the control module 101 can pull the current back to the constant current in real time through the above control mode, after a constant current electrical performance test is completed, the control module 101 will perform the real-time approximation of the next constant current, and so on. An ergodic test of the electrical properties of different constant current states can be performed.
  • matching the actual drain current I0 with the target drain current I includes: the relationship between the actual drain current I0 and the target drain current I satisfies the following inequality: I- ⁇ I1 ⁇ I0 ⁇ I+ ⁇ I2, where ⁇ I1 and ⁇ I2
  • ⁇ I1 and ⁇ I2 For current adjustment factors greater than or equal to 0, ⁇ I1 and ⁇ I2 may be equal or unequal, and this embodiment may alternatively be equal to ⁇ I1 and ⁇ I2; if ⁇ I1 is equal to ⁇ I2 and equal to zero, indicating target drain current I and actual drain The current I0 is equal; during the actual adjustment process, the actual drain current I0 cannot be exactly equal to the target current I, so the current adjustment factor is used to give the actual drain current I0 a reasonable value area, the actual drain current I0.
  • the value in the value range is to meet the error requirement; the current adjustment factor may also be to set the target drain current I to a range value, and any value of the actual drain current I0, as long as it is in the range
  • the value is used as the characteristic value of the target drain current, which represents the target drain current I, so that the efficiency of the test can be effectively improved within the error tolerance range.
  • the process of adjusting the gate voltage is: adjusting the gate voltage according to the target drain current I and the actual drain current I0. After the adjustment, comparing the changed actual drain current I0 with the target drain current I After the actual drain current I0 and the target drain current I match, the adjustment of the gate voltage is stopped; if the actual drain current I0 and the target drain current I do not match, according to the changed actual drain current I0 and the target drain The relationship of current I continues to adjust until the actual drain current I0 matches the target drain current I.
  • the adjustment mode in this embodiment is a stepwise adjustment, that is, the gate voltage is adjusted according to the same difference, so that the actual drain current I0 approaches the target drain current I; of course, when adjusting, Any interval adjustment can be made to match the actual drain current I0 with the target drain current I.
  • step S301 the following steps are further included:
  • the test device acquires and stores a correspondence between the target drain current I and the performance parameter.
  • the performance parameter of the power amplifier is obtained by the performance parameter testing module 102, and then the correspondence between the target drain current I and the performance parameter is established by the statistics module 104.
  • step S301 the following steps are further included:
  • the test device detects and stores the ambient temperature at which the power amplifier is placed at all target drain currents I.
  • the actual drain current I0 at this time is a quiescent current.
  • the gate voltage of the power amplifier is directly adjusted by the monotonous correspondence between the gate voltage and the drain current, so that the actual The drain current I0 changes correspondingly; when the actual drain current I0 and the target drain When the pole current I matches, the gate voltage is no longer adjusted.
  • the performance parameters of the power amplifier are tested.
  • the gate voltage of the power amplifier is continuously adjusted to match the actual drain current I0 to the next target drain. Current I, continue to test the performance parameters until all target drain currents I and corresponding performance parameters have been tested.
  • the actual drain current I0 at this time is a constant current.
  • the gate voltage needs to be adjusted in real time so that the actual drain current I0 that varies with the input signal always coincides with the target drain current. I match, and then start testing the performance parameters of the power amplifier; after the test is completed, the real-time adjustment of the gate voltage is continued to make the real-time drain current I0 that changes with the input signal always match the next target drain current I.
  • the performance parameters of different constant current states can be tested.
  • FIG. 4 is a flow chart of a control method provided by this embodiment. Please refer to FIG. 4:
  • control method includes the test method in the third embodiment, which is not described here again; after step S304, the method further includes steps S401-S403:
  • the receiver acquires and determines the quality of the output signal of the power amplifier.
  • the receiver sends a determination result of the quality of the output signal of the power amplifier to the control device.
  • the control device adjusts a drain current of the power amplifier according to the determination result and the corresponding relationship.
  • the correspondence relationship is the correspondence between the target drain current and the performance parameter of the power amplifier obtained by the test method in the third embodiment.
  • the quality of the signal received by the receiver is reflected by the average bit error rate.
  • the adjusting process of the control device is: if the judgment result received by the receiver indicates that the quality of the signal sent by the power amplifier is poor, such as the average bit error rate is poor, and the link is unreachable, it is determined as a linear indicator of the output signal. Deterioration, the control device will select the state in which the linear index of the power amplifier is better to adjust the drain current accordingly; if the average bit error rate is good and the link is not connected, it is judged that the saturated output power of the output signal is not good, and the control device The state in which the power amplifier has a good saturation output power is selected to adjust the drain current accordingly.
  • the manner of adjusting the drain current of the power amplifier is preferably adjusting the gate of the power amplifier. Extreme voltage.
  • the present embodiment provides a test device with a detailed structure as an example, as shown in FIG. 5:
  • the detection of one current can be realized, or the simultaneous detection of multiple currents, and simultaneous testing of multiple power amplifiers can be realized.
  • the testing device 50 in this embodiment includes: a central processing unit 501, a current detecting module 502, a control unit 503, a current protection module 504, a temperature detecting module 505, a voltage converting module 506, a spectrum analyzer, and a power meter; the central processing unit 501 includes Digital to analog conversion module 5011 and analog to digital conversion module 5012.
  • the central processing unit 501 is connected to the control unit 503 (which can be implemented by a PC or the like), and the control unit 503 sends the function command to be tested to the central processing unit 501, and the central processing unit 501 collects the actual drain current through the analog-to-digital conversion module 5012. I0 and the target drain current I, and then the gate voltage adjustment signal is sent according to the relationship between the target drain current I and the actual drain current I0 to the digital-to-analog conversion module 5011, and the digital-to-analog conversion module 5011 will issue a gate voltage adjustment signal. Convert to analog signal.
  • the gate voltage adjustment signal sent by the central processing unit 501 matches the actual drain current I0 with the target drain current I; when the matching is completed, the central processing unit 501 notifies the spectrum analyzer and the power meter to test the performance parameters of the power amplifier.
  • the spectrum analyzer tests the linearity index of the power amplifier
  • the power meter tests the saturated output power of the power amplifier
  • the controller 503 collects a correspondence table and/or a correspondence diagram of the target drain current I and the performance parameters.
  • the spectrum analyzer and the power meter will feed back the command to the central processing unit 501, and the central processing unit 501 starts the acquisition of the next target drain current I and the corresponding performance parameters until all target drain currents I are completed. test.
  • the voltage conversion module 507 converts the 0V-3.3V voltage output by the digital-to-analog conversion module 5012 to -5V-0V required for the gate voltage through the operational amplifier, thereby realizing the control of the gate voltage by the central processing unit 501, and having hardware protection settings.
  • the voltage does not exceed -5V-0V.
  • the current detecting module 502 is configured to detect the actual drain current I0 of the power amplifier and feed back to the central processing unit 501 and the control unit 503 in time.
  • the current detecting module 502 further includes a switch module 5021.
  • the central processing unit 501 can control the switch module 5021 to cut off the power switch to protect the power amplifier and the power supply; and when the actual drain current is instantaneous When I0 is too large, the switch module 5021 also has corresponding protection, and the power can be cut off in time.
  • the temperature detecting module 505 includes a temperature sensor 5051 and an operational amplifier 5052.
  • the temperature detecting module 505 supplies power to the chip of the external temperature sensor 5051.
  • the temperature sensor 5051 records the ambient temperature of the current power amplifier in real time, and passes the measured temperature signal. After the 5052 is amplified, the temperature signal is converted into a digital signal by the analog-to-digital conversion module 5012, and sent to the central processing unit 501 to realize real-time recording of the temperature by the central processing unit 501.
  • FIG. 6 is a flowchart corresponding to the testing apparatus of FIG. 5, including steps S601-S603:
  • the current detecting module 502 detects the drain current of the n-channel power supply passing through the testing device, and is connected to the central processing unit 501, so that the central processing unit 501 can read the n current values in real time.
  • the central processing unit 501 issues a set of circuits that interrupt the overcurrent by controlling the switch module 5021.
  • the instantaneous current is too large, and the central processing unit 501 does not have time to react.
  • the current detection module 502 can also use the hardware output to cut off the set of switches.
  • the temperature detecting module 505 supplies power to the chip of the external temperature sensor 5051, and the temperature sensor 5051 records the ambient temperature of the current power amplifier in real time, and the measured temperature signal is amplified by the operational amplifier 5052, and then passes through the analog-to-digital conversion module.
  • the 5012 converts the temperature signal into a digital signal and sends it to the central processing unit 501 to enable real-time recording of the temperature by the central processing unit 501.
  • the central processing unit 501 is connected to the control unit 503, and the control unit 503 sends the function instruction to be tested to the central processing unit 501, and the central processing unit 501 collects the actual drain current I0 and the target drain current through the analog-to-digital conversion module 5012. I, then the gate voltage adjustment signal is sent to the digital-to-analog conversion module 5011 according to the relationship between the target drain current I and the actual drain current I0, and the digital-to-analog conversion module 5011 converts the issued gate voltage adjustment signal into an analog signal.
  • the gate voltage adjustment signal sent by the central processing unit 501 matches the actual drain current I0 with the target drain current I.
  • the central processing unit 501 notifies the spectrum analyzer and the power meter to test the performance parameters of the power amplifier. Obtain a correspondence table and/or a correspondence diagram of the target drain current I and the performance parameter.
  • the central processing unit 501 acquires the next target drain current I to be tested of the power amplifier, and repeats the above steps until all the target drain currents I are tested.
  • a computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the test method and the control method.
  • the computer program can be implemented in a computer readable storage medium, the computer program being executed on a corresponding hardware platform (such as a system, device, device, device, etc.), when executed, including One or a combination of the steps of the method embodiments.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the test device in the solution of the embodiment of the present invention correspondingly changes the drain current of the power amplifier by adjusting the gate voltage of the power amplifier.
  • the test device stops adjusting the gate voltage, and then starts.
  • the test device continues to adjust the gate voltage of the power amplifier to perform the performance test of the power amplifier corresponding to the next target drain current until all of the performance is completed.
  • the performance test of the target drain current enables the test device to automatically perform the performance test of the power amplifier under different states, saving manpower, ensuring the efficiency and accuracy of the test, effectively saving resources and improving efficiency.

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Abstract

一种测试装置（10）和方法以及一种控制系统（20）和方法，该测试装置（10）包括控制模块（101）和性能参数测试模块（102），所述控制模块（101）设置为获取功率放大器（201）当前待测试的目标漏极电流I，控制所述功率放大器（201）的栅极电压使所述功率放大器（201）的实际漏极电流I0与所述目标漏极电流I匹配，并向所述性能参数测试模块（102）发送测试通知；以及设置为在所述性能参数测试模块（102）测试完毕后获取所述功率放大器（201）下一目标漏极电流I，直至获取完所有目标漏极电流I；所述性能参数测试模块（102）设置为根据所述测试通知对所述功率放大器（201）的性能参数进行测试。控制系统（20）包括：使用接收机（202）判定功率放大器（201）输出的信号质量，依据测试得到的功率放大器（201）漏极电流和性能参数之间的对应关系，对功率放大器（201）的漏极电流进行调整，直至功率放大器（201）的输出信号质量达到预期值，同时保证功率放大器（201）漏极电流最低，达到功率放大器（201）性能和效率的平衡。

Description

一种测试方法、测试装置、控制方法及控制系统 技术领域
本申请涉及但不限于通信领域，尤其涉及一种测试方法、测试装置、控制方法及控制系统。
背景技术
随着微波通信技术的发展，大带宽、高峰均比的信号被大量应用于微波基带中，这就对微波发射机的功率放大器使用提出了很高的要求：首先要能满足高峰均比所要求的最大发射功率，同时要满足大带宽要求的信噪比要求。
功率放大器工作在不同的应用场景需要不同的电压和电流配置，而目前生产厂家给出的典型配置都是为了获得最大功率，忽略了其他因素对功率放大器的影响。因此，为了找到能够合理利用的最佳工作点，下游厂家需要通过手动的方式对不同组合的电压电流工作状态功放的电性能进行遍历测试，在测试结果数据中寻找，以尽可能使整机正常使用过程中，在优化趋势曲线中寻找合适的功放参数，以达到整机线性和功耗的最佳状态。但采用手动对功率放大器进行测试存在人力成本高、效率以及准确度低的问题。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例要解决的主要技术问题是，提供一种测试方法、测试装置、控制方法及控制系统，解决相关技术中采用手动对功率放大器进行不同状态的测试和应用中存在人力成本高、效率以及准确度低的问题。
一种测试装置，包括：控制模块以及性能参数测试模块。
所述控制模块设置为获取功率放大器当前待测试的目标漏极电流I，控制所述功率放大器的栅极电压使所述功率放大器的实际漏极电流I0与所述目标漏极电流I匹配，并向所述性能参数测试模块发送测试通知；以及设置为在所述性能参数测试模块测试完毕后获取所述功率放大器下一目标漏极电流I，直至获取完所有目标漏极电流I。
所述性能参数测试模块设置为根据所述测试通知对所述功率放大器的性能参数进行测试。
可选地，所述功率放大器的实际漏极电流I0与所述目标漏极电流I匹配包括：所述实际漏极电流I0与所述目标漏极电流I满足以下关系：I-ΔI1≤I0≤I+ΔI2，所述ΔI1和ΔI2为大于等于0的电流调整因子。
可选地，所述装置还包括电压转换模块。
所述电压转换模块设置为与所述控制模块配合，根据所述目标漏极电流I和实际漏极电流I0调整所述功率放大器的栅极电压。
其中，所述电压转换模块与所述控制模块配合，根据所述目标漏极电流I和实际漏极电流I0调整所述功率放大器的栅极电压包括：所述控制模块根据所述目标漏极电流I和实际漏极电流I0输入栅极调整电压至所述电压转换模块，所述电压转换模块将所述栅极调整电压转换后输入所述功率放大器。
可选地，根据所述目标漏极电流I和实际漏极电流I0调整所述功率放大器的栅极电压还包括：所述控制模块根据所述目标漏极电流I和所述实际漏极电流I0之间的关系调整所述栅极电压，并检测调整后的所述实际漏极电流I0与所述目标漏极电流I是否匹配，如果调整后的所述实际漏极电流I0与所述目标漏极电流I匹配，则停止调整所述栅极电压；如果调整后的所述实际漏极电流I0与所述目标漏极电流I不匹配，则继续调整所述栅极电压，直到所述实际漏极电流I0与所述目标漏极电流I匹配。
可选地，所述装置还包括电流检测模块，所述电流检测模块设置为检测所述功率放大器的实际漏极电流I0，并将所述实际漏极电流I0发送给所述控制模块。
可选地，所述装置还包括统计模块，所述统计模块设置为获取并储存所述目标漏极电流I与所述性能参数之间的对应关系。
可选地，所述装置还包括温度检测模块，所述温度检测模块设置为检测在所有所述目标漏极电流I下所述功率放大器所处的环境温度，并将所述环境温度发送给所述控制模块；所述控制模块还设置为将所述环境温度发送至所述统计模块；所述统计模块还设置为对应储存所述环境温度与所述目标漏极电流I。
可选地，所述性能参数测试模块包括频谱仪子模块和功率计子模块，所述性能参数包括线性指标和饱和输出功率，所述频谱仪子模块设置为获取所述线性指标，所述功率计子模块设置为获取所述饱和输出功率。
一种控制系统，包括功率放大器、接收机、控制装置以及所述的测试装置。
所述测试装置设置为获取功率放大器的目标漏极电流I与性能参数之间的对应关系。
所述接收机设置为接收并判断所述功率放大器发出的信号的质量，并将判断结果发送给所述控制装置。
所述控制装置设置为根据所述接收机接收并判断的所述功率放大器发出的信号的质量和所述对应关系调整所述功率放大器的漏极电流。
一种测试方法，包括：
测试装置获取功率放大器当前待测试的目标漏极电流I。
所述测试装置控制所述功率放大器的栅极电压使所述功率放大器的实际漏极电流I0与所述目标漏极电流I匹配。
所述测试装置测试所述功率放大器的性能参数。
所述测试装置获取所述功率放大器的下一待测试的目标漏极电流I，重复上述步骤，直至完成所有目标漏极电流I的测试。
可选地，所述功率放大器的实际漏极电流I0与所述目标漏极电流I匹配包括，所述实际漏极电流I0与所述目标漏极电流I满足以下关系：I-ΔI1≤I0≤I+ΔI2，所述ΔI1和ΔI2为大于等于0的电流调整因子。
可选地，所述方法还包括：根据所述目标漏极电流I和实际漏极电流I0调整所述功率放大器的栅极电压。
所述根据所述目标漏极电流I和实际漏极电流I0调整所述功率放大器的栅极电压包括：所述测试装置根据所述目标漏极电流I和所述实际漏极电流I0之间的关系调整所述栅极电压，并检测调整后的所述实际漏极电流I0与所述目标漏极电流I是否匹配，如果调整后的所述实际漏极电流I0与所述目标漏极电流I匹配，则停止调整所述栅极电压；如果调整后的所述实际漏极电 流I0与所述目标漏极电流I不匹配，则继续调整所述栅极电压，直到所述实际漏极电流I0与所述目标漏极电流I匹配。
可选地，所述方法还包括：在所述测试装置测试所述功率放大器的性能参数之后，获取并储存所述目标漏极电流I与所述性能参数之间的对应关系。
可选地，所述方法还包括：在所述测试装置获取功率放大器当前待测试的目标漏极电流I和实际漏极电流I0之后，所述测试装置检测并储存在所有所述目标漏极电流I下所述功率放大器所处的环境温度。
一种控制方法，包括以上所述的测试方法。
所述方法还包括：
接收机获取并判断所述功率放大器的输出信号的质量。
接收机将所述功率放大器的输出信号的质量的判断结果发送至控制装置。
所述控制装置根据所述判断结果和所述对应关系调整所述功率放大器的漏极电流。
一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现所述的测试方法以及所述的控制方法。
本发明实施例的有益效果是：本发明实施例提供了一种测试装置和方法，该测试装置通过调整功率放大器的栅极电压来对应改变功率放大器的漏极电流，当实际漏极电流和目标漏极电流匹配时，测试装置停止调节栅极电压，然后开始对功率放大器的性能测试，在该目标漏极电流下的性能测试完毕后，测试装置继续调整功率放大器的栅极电压，以进行下一目标漏极电流对应的功率放大器的性能测试，直到完成所有目标漏极电流的性能测试为止，使测试装置自动完成不同状态下功率放大器的性能测试，节省了人力，保证了测试的效率和准确性；本发明还提供了一种控制系统和方法，控制系统包括上述的测试装置，测试装置设置为获取功率放大器的目标漏极电流和性能参数的对应关系；控制系统在获取了功率放大器的输出信号后，对输出信号的质量进行判断，然后通过该判断结果和目标漏极电流和性能参数的对应关系对功率放大器的漏极电流进行调整，使功率放大器的工作状态达到最优，在满 足功率放大器工作要求的前提下，使功率放大器的漏极电流最小，有效节省了资源，提高了效率。
附图概述
图1为本发明实施例一提供的一种测试装置的结构示意图；
图2为本发明实施例二提供的一种控制系统的结构示意图；
图3为本发明实施例三提供的一种测试方法的流程图；
图4为本发明实施例四提供的一种控制方法的流程图；
图5为本发明实施例五提供的另一种测试装置的结构示意图；
图6为本发明实施例五提供的另一种测试方法的流程图。
本发明的实施方式
下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
实施例一
图1为本实施例提供的一种测试装置的结构示意图，请参考图1：
本实施例中的测试装置10包括：控制模块101、性能参数测试模块102；
控制模块101设置为获取功率放大器当前待测试的目标漏极电流I，然后控制功率放大器的栅极电压，使当前的实际漏极电流I0与目标漏极电流匹配，当匹配过程完成后，控制模块101向性能参数测试模块102发送测试通知，让性能参数测试模块102开始对功率放大器的性能参数进行测试；以及设置为在性能参数测试模块102测试完毕后，继续获取功率放大器的下一目标漏极电流I，直到控制模块101获取完所有目标漏极电流I以及性能参数测试模块102完成对所有目标漏极电流I对应的功率放大器的性能参数的测试，使用控制模块来实现上述功能可以实现对功率放大器的不同的工作状态的自动化测试，避免了人工测试的繁琐，缩短了测试时间。
性能参数测试模块102设置为在收到控制模块101发送的测试通知后对功率放大器的性能参数进行测试，以及测试完毕后，通知控制模块101，该性能参数测试模块102通过控制模块101发送的测试通知自动对功率放大器的性能参数进行测试，避免了人工测试的繁琐，提升了测试效率。
可选地，控制模块101实现实际漏极电流I0与目标漏极电流I匹配包括，实际漏极电流I0与目标漏极电流I的关系满足以下不等式：I-ΔI1≤I0≤I+ΔI2，其中，ΔI1和ΔI2为大于等于0的电流调整因子，ΔI1和ΔI2可以相等，也可以不等，本实施例可选地为ΔI1和ΔI2相等；如果ΔI1等于ΔI2且等于零时，表示目标漏极电流I和实际漏极电流I0相等；实际调整过程中，实际漏极电流I0不可能与目标电流I完全相等，所以采用该电流调整因子是设置为给实际漏极电流I0一个合理的取值区，实际漏极电流I0在取值区内的取值都是满足误差要求的；该电流调整因子也可以是将目标漏极电流I设定为一个范围值，而实际漏极电流I0的任何取值，只要在该范围值内，都作为该目标漏极电流的特征值，代表这个目标漏极电流I，如此在误差允许的范围内，可以有效提升测试的效率。
本实施例中，控制模块101优选为PC机和中央处理器，为了使控制模块101输出的数字信号转换为功率放大器可以直接使用的模拟信号，本实施例还包括电压转换模块105，电压转换模块105设置为将控制模块101输出的栅极调整电压转换后输入功率放大器，栅极调整电压是数字信号，经过电压转换模块105之后，该数字信号变为了模拟信号，可以直接被功率放大器使用。
可选地，调整栅极电压的过程为：根据目标漏极电流I和实际漏极电流I0调整栅极电压，调整后，将改变后的实际漏极电流I0和目标漏极电流I进行比对，当实际漏极电流I0和目标漏极电流I匹配后，停止调整栅极电压；如果实际漏极电流I0和目标漏极电流I不匹配，根据改变后的实际漏极电流I0和目标漏极电流I的关系继续调整，直到实际漏极电流I0和目标漏极电流I匹配为止。可选地，本实施例中的调整方式为步进式调整，即栅极电压按照相同的差值进行调整，使实际漏极电流I0逼近目标漏极电流I；当然，调整时，也可以是任意间隔的调整，只要能使实际漏极电流I0与目标漏极电流I匹配。
在本实施例中，对功率放大器进行测试时，功率放大器的输入功率可为零，此时所测试的目标漏极电流I为不同静态电流。功率放大器的输入功率也可不为零，其可输入相应大小的功率，此时所测试的目标漏极电流I为不同恒定电流，且此时当功率放大器的漏极电流随外界变化时，控制模块101 可以通过上述控制方式实时将电流拉回到恒定电流，在对一个恒电流电性能测试完成后，控制模块101将进行下一个恒定电流的实时逼近，依次类推，即可完成不同恒定电流状态的电性能的遍历测试。
可选地，在本实施例中，还包括电流检测模块103，设置为检测功率放大器的当前实际漏极电流I0，并将实际漏极电流I0发送给控制模块101，使控制模块101针对当前实际的漏极电流I0和目标漏极电流I的关系对功率放大器的栅极电压进行相应的调整。
可选地，在本实施例中，还包括统计模块104，设置为获取和储存目标漏极电流I以及性能参数测试模块102测得的与目标漏极电流I对应的性能参数，然后建立并存储目标漏极电流I和性能参数之间的对应关系的表和/或对应关系的图，通过该对应关系的表和/或对应关系的图能够直观的反映出目标漏极电流I和性能参数之间的对应关系，方便用户查看或供控制系统调用。
可选地，为了体现功率放大器在不同环境中漏极电流与性能参数之间的对应关系，该测试装置还包括温度检测模块106，温度检测模块106设置为检测在所有目标漏极电流I下功率放大器所处的环境温度，并将得到的温度数据发送给控制模块101，控制模块101还设置为将检测到的环境温度发送至统计模块104；统计模块104还设置为对应储存环境温度与目标漏极电流I，也可存储在所有的环境温度值下所对应的功率放大器的不同状态的性能参数的关系表和/或关系图。
可选地，功率放大器的性能参数有很多，比如线性指标、饱和输出功率、电压、电流、效率、输入输出特性、增益、输出驻波、平坦度、谐波抑制、杂散抑制、交调特性、相位、群时延、调幅/调相，而本实施例中主要选择测试的性能参数包括线性指标和饱和输出功率，本实施例在考虑功率放大器的最佳工作状态时，主要考虑线性指标和饱和输出功率这两个参数。性能参数测试模块102还包括频谱仪子模块1021和功率计子模块1022，频谱仪子模块1021包括频谱仪，功率计子模块1022包括功率计，频谱仪子模块1021利用频谱仪检测线性指标，该线性指标包括三阶交调、五阶交调和七阶交调，功率计子模块1022利用功率计检测饱和输出功率。统计模块104建立的目标漏极电流I和性能参数之间的对应关系包括，目标漏极电流I和线性指标之间的对应关系表和/或对应关系图，以及目标漏极电流I和饱和输出功率之间的 对应关系表和/或对应关系图。
可选地，统计模块104获取的目标漏极电流I和性能参数之间的对应关系可以做成关系表和/或关系图存放在统计模块104中，该关系表和/或关系图还可以包括对应测试状态的温度；上述的目标漏极电流I和线性指标之间的对应关系表和/或对应关系图，以及目标漏极电流I和饱和输出功率之间的对应关系表和/或对应关系图可以包括测得的环境温度。
为了避免漏极电流过大而引起测试装置或者功率放大器的损坏，本实施例还提供了电流保护模块；当电流检测模块103测得的当前实际漏极电流I0的大小超过了预设的阈值，控制模块101会向电流保护模块发出切断该电流的指令，电流保护模块收到了该指令就会切断该电流；当电流检测模块103测得的瞬时电流过大，控制模块101来不及反应时，电流保护模块会直接切断电源，保证设备的安全。
本实施例中的测试装置可以是单独的一个测试装置单元，也可以是设置于各种测试终端中。本实施例中的功率放大器可以是单独的一个功率放大器设备，也可以是设置于多种设备中的放大模块。
实施例二
图2为本实施例提供的一种控制系统20的结构示意图，请参考图2：
本实施例中的控制系统20包括功率放大器201、接收机202、控制装置203以及实施例一中的测试装置10；
接收机202设置为接收功率放大器201的发出的信号，然后判断该信号的质量，并将判断的结果发送给控制装置203。
控制装置203接收到接收机202发送的判断结果后，会根据该判断结果和由测试装置10测得的对应关系来对应调节漏极电流，将功放的工作状态调整到最优。
本实施例中接收机202接收到的信号的质量可由平均误码率来表征；当然也可采用其他的判断标准来表征。
本实施例中控制装置203的调整过程为，如果接收机202得到的判断结果为功率放大器201发出的信号质量很差，比如平均误码率很差，且链路不 通，则判断为输出信号的线性指标恶化，控制装置203会选择功率放大器201线性指标较好的状态来对漏极电流进行对应的调整；如果平均误码率好，而链路不通，则判断为输出信号的饱和输出功率不好，控制装置203会选择功率放大器201饱和输出功率较好的状态来对漏极电流进行对应的调整。
可选地，调整功率放大器的漏极电流的方式优选为调整功率放大器的栅极电压。
实施例三
图3为本实施例提供的测试方法的流程图，请参考图3，本测试方法包括步骤S301-S304：
S301、测试装置获取功率放大器当前待测试的目标漏极电流I。
S302、测试装置控制功率放大器的栅极电压，使功率放大器的实际漏极电流I0与目标漏极电流I匹配。
该步骤可通过控制模块101对栅极电压进行调整，使功率放大器的实际漏极电流I0与目标漏极电流I匹配；应当理解的是并不排除采用其他调整策略来调整功率放大器的漏极电流大小。
S303、测试装置测试功率放大器的性能参数。
S304、测试装置获取功率放大器的下一待测试的目标漏极电流I，重复上述步骤，直至完成所有目标漏极电流I的测试。
当性能参数测试模块102对性能参数的测试完成后，会给控制模块101发送信号，控制模块101收到信号后会继续调整栅极电压，使实际漏极电流I0与下一目标漏极电流I匹配，性能参数测试模块102继续测试下一目标漏极电流I的性能参数，统计模块104也继续建立下一目标漏极电流I与性能参数之间的对应关系，直到完成所有目标漏极电流I下的性能参数测试。
在本实施例中，对功率放大器进行测试时，功率放大器的输入功率可为零，此时所测试的目标漏极电流I为不同静态电流。功率放大器的输入功率也可不为零，其可输入相应大小的功率，此时所测试的目标漏极电流I为不同恒定电流，且此时当功率放大器的漏极电流随外界变化时，控制模块101可以通过上述控制方式实时将电流拉回到恒定电流，在对一个恒定电流电性能测试完成后，控制模块101将进行下一个恒定电流的实时逼近，依次类推， 即可完成不同恒定电流状态的电性能的遍历测试。
可选地，实际漏极电流I0与目标漏极电流I匹配包括：实际漏极电流I0与目标漏极电流I的关系满足以下不等式：I-ΔI1≤I0≤I+ΔI2，其中，ΔI1和ΔI2为大于等于0的电流调整因子，ΔI1和ΔI2可以相等，也可以不等，本实施例可选地为ΔI1和ΔI2相等；如果ΔI1等于ΔI2且等于零时，表示目标漏极电流I和实际漏极电流I0相等；实际调整过程中，实际漏极电流I0不可能与目标电流I完全相等，所以采用该电流调整因子是用于给实际漏极电流I0一个合理的取值区，实际漏极电流I0在取值区内的取值都是满足误差要求的；该电流调整因子也可以是将目标漏极电流I设定为一个范围值，而实际漏极电流I0的任何取值，只要在该范围值内，都作为该目标漏极电流的特征值，代表这个目标漏极电流I，如此在误差允许的范围内，可以有效提升测试的效率。
可选地，调整栅极电压的过程为：根据目标漏极电流I和实际漏极电流I0调整栅极电压，调整后，将改变后的实际漏极电流I0和目标漏极电流I进行比对，当实际漏极电流I0和目标漏极电流I匹配后，停止调整栅极电压；如果实际漏极电流I0和目标漏极电流I不匹配，根据改变后的实际漏极电流I0和目标漏极电流I的关系继续调整，直到实际漏极电流I0和目标漏极电流I匹配为止。可选地，本实施例中的调整方式为步进式调整，即栅极电压按照相同的差值进行调整，使实际漏极电流I0逼近目标漏极电流I；当然，调整时，也可以是任意间隔的调整，只要能使实际漏极电流I0与目标漏极电流I匹配。
可选地，在步骤S301之后，还包括以下步骤：
测试装置获取并储存目标漏极电流I与性能参数之间的对应关系。通过性能参数测试模块102来获取功率放大器的性能参数，然后通过统计模块104来建立目标漏极电流I与性能参数之间的对应关系。
可选地，在步骤S301之后，还包括以下步骤：
测试装置检测并储存在所有目标漏极电流I下功率放大器所处的环境温度。
当功率放大器没有输入信号时，此时的实际漏极电流I0为静态电流，在测试时，利用栅极电压和漏极电流之间单调的对应关系，直接调节功率放大器的栅极电压，使实际漏极电流I0相应的改变；当实际漏极电流I0与目标漏 极电流I匹配时，不再调整栅极电压，此时开始对功率放大器的性能参数进行测试；测试完毕后，继续调整功率放大器的栅极电压，使实际漏极电流I0匹配下一个目标漏极电流I，继续测试性能参数，直至测试完所有目标漏极电流I和对应的性能参数为止。
当功率放大器有输入信号时，此时的实际漏极电流I0为恒定电流，在测试时，需要对栅极电压进行实时调整以使随输入信号变化的实际漏极电流I0始终与目标漏极电流I匹配，然后开始对功率放大器的性能参数进行测试；测试完毕后，继续进行对栅极电压的实时调整以使随输入信号变化的实时漏极电流I0始终与下一个目标漏极电流I匹配，以此类推，可以完成不同恒定电流状态的性能参数的测试。
实施例四
图4是本实施例提供的一种控制方法的流程图，请参考图4：
该控制方法包括了实施例三中的测试方法，这里不再赘述；在步骤S304后，还包括步骤S401-S403：
S401、接收机获取并判断所述功率放大器的输出信号的质量。
S402、接收机将所述功率放大器的输出信号的质量的判断结果发送至控制装置。
S403、控制装置根据判断结果和对应关系调整功率放大器的漏极电流。
该对应关系为实施例三中的测试方法获取的功率放大器的目标漏极电流和性能参数之间的对应关系。
可选地，接收机接收到的信号的质量由平均误码率来反映。
可选地，控制装置的调整过程为，如果接收机接收到的判断结果显示功率放大器发出的信号质量很差，比如平均误码率很差，且链路不通，则判断为输出信号的线性指标恶化，控制装置会选择功率放大器线性指标较好的状态来对漏极电流进行对应的调整；如果平均误码率好，而链路不通，则判断为输出信号的饱和输出功率不好，控制装置会选择功率放大器饱和输出功率较好的状态来对漏极电流进行对应的调整。
可选地，调整功率放大器的漏极电流的方式优选为调整功率放大器的栅 极电压。
实施例五
为了更好的理解本发明实施例，本实施例提供一种详细结构的测试装置为示例进行说明，请参见如图5所示：
本实施例可以实现对一路电流的检测，也可以是多路电流的同时检测，以及实现对多个功率放大器的同时测试。
本实施例中的测试装置50包括：中央处理器501、电流检测模块502、控制机503、电流保护模块504、温度检测模块505、电压变换模块506、频谱仪和功率计；中央处理器501包括数模转换模块5011和模数转换模块5012。
中央处理器501连接控制机503(可采用PC机等实现)，控制机503将所要测试的功能指令下发到中央处理器501，同时中央处理器501通过模数转换模块5012收集实际漏极电流I0和目标漏极电流I，然后根据目标漏极电流I和实际漏极电流I0的关系发出的栅极电压调整信号给数模转换模块5011，数模转换模块5011将发出的栅极电压调整信号转换为模拟信号。其中，中央处理器501发出的栅极电压调整信号使实际漏极电流I0与目标漏极电流I匹配；当匹配完成后，中央处理器501通知频谱仪和功率计对功率放大器的性能参数进行测试，频谱仪测试功率放大器的线性指标，功率计测试功率放大器的饱和输出功率，控制机503收集目标漏极电流I和性能参数的对应关系表和/或对应关系图。测试完成后，频谱仪和功率计会反馈指令给中央处理器501，中央处理器501开始进行下一目标漏极电流I的获取以及对应的性能参数的测试，直到完成所有目标漏极电流I的测试。
电压变换模块507将数模转换模块5012输出的0V-3.3V电压通过运放变换到栅极电压所需的-5V-0V，实现中央处理器501对栅极电压的控制，同时有硬件保护设置电压不超出-5V-0V。
电流检测模块502用来检测功率放大器的实际漏极电流I0，并及时反馈给中央处理器501和控制机503。可选地，电流检测模块502还包括开关模块5021，当实际漏极电流I0超出阈值时，中央处理器501可以控制开关模块5021切断电源开关，保护功率放大器和电源；同时当瞬间实际漏极电流I0过大时，开关模块5021上也做了相应的保护，可以及时切断电源。
温度检测模块505包括温度传感器5051和运放5052，温度检测模块505给外置的温度传感器5051的芯片供电，温度传感器5051实时记录当前功率放大器所处的环境温度，将测得的温度信号通过运放5052放大后，再经过模数转换模块5012将温度信号转换为数字信号，送入中央处理器501，实现中央处理器501对温度的实时记录。
图6为基于图5的测试装置对应的流程图，包括步骤S601-S603：
S601、电流检测模块502检测通过该测试装置的n路电源的漏极电流，连接至中央处理器501，使中央处理器501可以实时读取这n路电流值。
可选地，当电流超过中央处理器501软件设定最大值时，中央处理器501发出指令通过控制开关模块5021切断过流的那组电路；同时瞬间电流过大，中央处理器501来不及反应时，电流检测模块502也可使用硬件输出切断过流那组开关。
S602、温度检测模块505给外置的温度传感器5051的芯片供电，温度传感器5051实时记录当前功率放大器所处的环境温度，将测得的温度信号通过运放5052放大后，再经过模数转换模块5012将温度信号转换为数字信号，送入中央处理器501，实现中央处理器501对温度的实时记录。
S603、中央处理器501连接控制机503，控制机503将所要测试的功能指令下发到中央处理器501，同时中央处理器501通过模数转换模块5012收集实际漏极电流I0和目标漏极电流I，然后根据目标漏极电流I和实际漏极电流I0的关系发出的栅极电压调整信号给数模转换模块5011，数模转换模块5011将发出的栅极电压调整信号转换为模拟信号。
S604、中央处理器501发出的栅极电压调整信号使实际漏极电流I0与目标漏极电流I匹配，当匹配完成后，中央处理器501通知频谱仪和功率计对功率放大器的性能参数进行测试，得到目标漏极电流I与性能参数的对应关系表和/或对应关系图。
S605、中央处理器501获取功率放大器的下一待测试的目标漏极电流I，重复上述步骤，直至完成所有目标漏极电流I的测试。
一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现所述的测试方法以及所述的控制方法。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计 算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行，在执行时，包括方法实施例的步骤之一或其组合。
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。
上述实施例中的装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。
上述实施例中的装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器，磁盘或光盘等。
工业实用性
本发明实施例方案中的测试装置通过调整功率放大器的栅极电压来对应改变功率放大器的漏极电流，当实际漏极电流和目标漏极电流匹配时，测试装置停止调节栅极电压，然后开始对功率放大器的性能测试，在该目标漏极电流下的性能测试完毕后，测试装置继续调整功率放大器的栅极电压，以进行下一目标漏极电流对应的功率放大器的性能测试，直到完成所有目标漏极电流的性能测试为止，使测试装置自动完成不同状态下功率放大器的性能测试，节省了人力，保证了测试的效率和准确性，有效节省了资源，提高了效率。

Claims (16)

  1. 一种测试装置，包括：控制模块以及性能参数测试模块；
    所述控制模块设置为获取功率放大器当前待测试的目标漏极电流I，控制所述功率放大器的栅极电压使所述功率放大器的实际漏极电流I0与所述目标漏极电流I匹配，并向所述性能参数测试模块发送测试通知；以及设置为在所述性能参数测试模块测试完毕后获取所述功率放大器下一目标漏极电流I，直至获取完所有目标漏极电流I；
    所述性能参数测试模块设置为根据所述测试通知对所述功率放大器的性能参数进行测试。
  2. 如权利要求1所述的测试装置，其中，所述功率放大器的实际漏极电流I0与所述目标漏极电流I匹配包括：所述实际漏极电流I0与所述目标漏极电流I满足以下关系：I-ΔI1≤I0≤I+ΔI2，所述ΔI1和ΔI2为大于等于0的电流调整因子。
  3. 如权利要求2所述的测试装置，所述装置还包括电压转换模块；所述电压转换模块设置为与所述控制模块配合，根据所述目标漏极电流I和实际漏极电流I0调整所述功率放大器的栅极电压；
    其中，所述电压转换模块与所述控制模块配合，根据所述目标漏极电流I和实际漏极电流I0调整所述功率放大器的栅极电压包括：所述控制模块根据所述目标漏极电流I和实际漏极电流I0输入栅极调整电压至所述电压转换模块，所述电压转换模块将所述栅极调整电压转换后输入所述功率放大器。
  4. 如权利要求3所述的测试装置，其中，所述根据所述目标漏极电流I和实际漏极电流I0调整所述功率放大器的栅极电压还包括：所述控制模块根据所述目标漏极电流I和所述实际漏极电流I0之间的关系调整所述栅极电压，并检测调整后的所述实际漏极电流I0与所述目标漏极电流I是否匹配，如果调整后的所述实际漏极电流I0与所述目标漏极电流I匹配，则停止调整所述栅极电压；如果调整后的所述实际漏极电流I0与所述目标漏极电流I不匹配，则继续调整所述栅极电压，直到所述实际漏极电流I0与所述目标漏极电流I匹配。
  5. 如权利要求1-4任一项所述的测试装置，所述装置还包括电流检测模块，所述电流检测模块设置为检测所述功率放大器的实际漏极电流I0，并将 所述实际漏极电流I0发送给所述控制模块。
  6. 如权利要求1-4任一项所述的测试装置，所述装置还包括统计模块，所述统计模块设置为获取并储存所述目标漏极电流I与所述性能参数之间的对应关系。
  7. 如权利要求1-4任一项所述的测试装置，所述装置还包括温度检测模块，所述温度检测模块设置为检测所有所述目标漏极电流I下所述功率放大器所处的环境温度，并将所述环境温度发送给所述控制模块；所述控制模块还设置为将所述环境温度发送至所述统计模块；所述统计模块还设置为对应储存所述环境温度与所述目标漏极电流I。
  8. 如权利要求1-4任一项所述的测试装置，其中，所述性能参数测试模块包括频谱仪子模块和功率计子模块，所述性能参数包括线性指标和饱和输出功率，所述频谱仪子模块设置为获取所述线性指标，所述功率计子模块设置为获取所述饱和输出功率。
  9. 一种控制系统，包括功率放大器、接收机以及控制装置以及如权利要求1-8任一项所述的测试装置；
    所述测试装置设置为获取功率放大器的目标漏极电流I与性能参数之间的对应关系；
    所述接收机设置为接收并判断所述功率放大器发出的信号的质量，并将判断结果发送给所述控制装置；
    所述控制装置设置为根据所述判断结果和所述功率放大器的目标漏极电流I与性能参数之间的对应关系调整所述功率放大器的漏极电流。
  10. 一种测试方法，包括：
    测试装置获取功率放大器当前待测试的目标漏极电流I；
    所述测试装置控制所述功率放大器的栅极电压使所述功率放大器的实际漏极电流I0与所述目标漏极电流I匹配；
    所述测试装置测试所述功率放大器的性能参数；
    所述测试装置获取所述功率放大器的下一待测试的目标漏极电流I，重复上述步骤，直至完成所有目标漏极电流I的测试。
  11. 如权利要求10所述的测试方法，其中，所述功率放大器的实际漏极电流I0与所述目标漏极电流I匹配包括，所述实际漏极电流I0与所述目标漏 极电流I满足以下关系：I-ΔI1≤I0≤I+ΔI2，所述ΔI1和ΔI2为大于等于0的电流调整因子。
  12. 如权利要求11所述的测试方法，所述方法还包括：根据所述目标漏极电流I和实际漏极电流I0调整所述功率放大器的栅极电压；
    所述根据所述目标漏极电流I和实际漏极电流I0调整所述功率放大器的栅极电压包括：所述测试装置根据所述目标漏极电流I和所述实际漏极电流I0之间的关系调整所述栅极电压，并检测调整后的所述实际漏极电流I0与所述目标漏极电流I是否匹配，如果调整后的所述实际漏极电流I0与所述目标漏极电流I匹配，则停止调整所述栅极电压；如果调整后的所述实际漏极电流I0与所述目标漏极电流I不匹配，则继续调整所述栅极电压，直到所述实际漏极电流I0与所述目标漏极电流I匹配。
  13. 如权利要求10-12任一项所述的测试方法，所述方法还包括：在所述测试装置测试所述功率放大器的性能参数之后，获取并储存所述目标漏极电流I与所述性能参数之间的对应关系。
  14. 如权利要求10-12任一项所述的测试方法，其特征在于，所述方法还包括：在所述测试装置获取功率放大器当前待测试的目标漏极电流I和实际漏极电流I0之后，所述测试装置检测并储存所有所述目标漏极电流I下所述功率放大器所处的环境温度。
  15. 一种控制方法，包括：权利要求10-14任一项所述的测试方法；
    所述方法还包括：
    接收机获取并判断所述功率放大器的输出信号的质量；
    接收机将所述功率放大器的输出信号的质量的判断结果发送至控制装置；
    所述控制装置根据所述判断结果和所述功率放大器的目标漏极电流I和性能参数之间的对应关系调整所述功率放大器的漏极电流。
  16. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现权利要求10至14任意一项所述的测试方法，以及权利要求15所述的控制方法。
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