CN103516409A - Method and device for detecting performance of multi-channel equipment - Google Patents
Method and device for detecting performance of multi-channel equipment Download PDFInfo
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- CN103516409A CN103516409A CN201210222703.XA CN201210222703A CN103516409A CN 103516409 A CN103516409 A CN 103516409A CN 201210222703 A CN201210222703 A CN 201210222703A CN 103516409 A CN103516409 A CN 103516409A
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Abstract
The invention provides a method and device for detecting the performance of multi-channel equipment, and relates to the technical field of communication. The method and device for detecting the performance of the multi-channel equipment solves the problem that the accuracy of a detection result is low when a detection device is used for detecting the performance of a multi-channel transmitting terminal and a receiving terminal. The method specifically comprises the following steps: input signals which are sent by the transmitting terminal and transmitted through at least two channels are acquired; the correlation of the input signals is computed to acquire input signal correlation information; the loss value of a combiner is computed according to the input signals and the input signal correlation information; the detection result of the transmitting terminal is computed according to the input signals and the loss value, and the detection result is used for describing the performance of the transmitting terminal. The method and device can be used for detecting the performance of the transmitting terminal and the receiving terminal.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the method and apparatus that detects multi-path-apparatus performance.
Background technology
Development along with communication products such as mobile phone, computers, quantity constantly increases, the capacity of the passage for transmission information between transmitting terminal and receiving terminal can not practical requirement, and with MIMO(Multiple-Input Multiple-Out-put, multiple-input, multiple-output) the technology multi-antenna technology that is representative can effectively increase between transmitting terminal and receiving terminal the capacity for the passage of transmission information.
In prior art, due to AAS(Adaptive Antenna System, active antenna system) technology can be at numeric field by adjusting the amplitude of each passage between transmitting terminal and receiving terminal, the beam shape that phase place changes each passage, make between transmitting terminal and receiving terminal, to there are a plurality of transceiver channels, therefore, people adopt AAS technology to increase between transmitting terminal and receiving terminal the capacity for the passage of transmission information.
For the accuracy that guarantee information is transmitted, people also want periodically the performance of transmitting terminal and receiving terminal to be detected.
Concrete, by checkout gear, the performance of transmitting terminal is detected, as shown in Figure 1, checkout gear detects the performance at mixer output port place, and according to the performance of mixer output port, the performance of receiving terminal is detected, and obtains testing result.But what in fact need acquisition is the performance information of Performance figure port, therefore, when transmitting terminal is detected, the loss value of mixer need to be calibrated in testing result.
State in realization in the process that detects multi-path-apparatus performance, inventor finds that in prior art, at least there are the following problems: checkout gear is the factor of only having considered mixer self calculating testing result, cause measurement mechanism to calculate the loss value of mixer inaccurate, and then cause testing result inaccurate.
Summary of the invention
Embodiments of the invention provide a kind of method, device that detects multi-path-apparatus performance, have solved the lower problem of accuracy of the testing result of checkout gear detection transmitting terminal performance.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A method that detects multi-path-apparatus performance, comprising:
Obtain the input signal that passes through at least two channel transfer that transmitting terminal sends;
Correlation to described input signal is calculated, and obtains input signal correlation information;
According to described input signal and described input signal correlation information, the loss value of mixer is calculated;
According to described input signal, described loss value, calculate the testing result of transmitting terminal, described testing result is for describing the performance of described transmitting terminal.
A device that detects multi-path-apparatus performance, comprising:
Acquiring unit, the input signal that passes through at least two channel transfer sending for obtaining transmitting terminal;
The first computing unit, calculates for the correlation of described input signal that described acquiring unit is obtained, obtains input signal correlation information;
The second computing unit, the described input signal correlation information calculating for the described input signal that obtains according to described acquiring unit and described the first computing unit calculates the loss value of mixer;
The 3rd computing unit, the described loss value calculating for the described input signal obtaining according to described acquiring unit, described the second computing unit calculates the testing result of transmitting terminal, and described testing result is for describing the performance of described transmitting terminal.
Method, the device of the detection multi-path-apparatus performance that the embodiment of the present invention provides, adopt after such scheme, before calculating the testing result of transmitting terminal, checkout gear is according to the input signal obtaining, calculate input signal correlation information, and according to input signal, input signal correlation information, the loss value of mixer is calculated; Finally according to the testing result of input signal and loss value calculating transmitting terminal; When calculating the loss value of mixer, consider the correlation information of input signal, make the loss value that calculates more accurate, and then make testing result more accurate.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The transmitting terminal that Fig. 1 provides for the embodiment of the present invention and the system construction drawing of checkout gear;
A kind of method flow diagram that detects multi-path-apparatus performance that Fig. 2 provides for the embodiment of the present invention;
The another kind that Fig. 3 provides for the embodiment of the present invention detects the method flow diagram of multi-path-apparatus performance, and the equipment in the method is transmitting terminal;
The checkout gear that Fig. 4 provides for the embodiment of the present invention detects the structural representation of transmitting terminal performance, and the phase place to input signal is adjusted in analog domain;
The checkout gear that Fig. 5 provides for the embodiment of the present invention detects the structural representation of transmitting terminal performance, and the phase place to input signal is adjusted in numeric field;
The another kind that Fig. 6 provides for the embodiment of the present invention detects the method flow diagram of multi-path-apparatus performance, and the equipment in the method is receiving terminal;
The checkout gear that Fig. 7 provides for the embodiment of the present invention detects the structural representation of receiving terminal performance, and in analog domain, the phase place of useful signal and interference signal and amplitude is arranged;
The checkout gear that Fig. 8 provides for the embodiment of the present invention detects the structural representation of receiving terminal performance, and in numeric field, the phase place of useful signal and interference signal and amplitude is arranged;
A kind of apparatus structure schematic diagram that detects multi-path-apparatus performance that Fig. 9 provides for the embodiment of the present invention;
The another kind that Figure 10 provides for the embodiment of the present invention detects the apparatus structure schematic diagram of multi-path-apparatus performance, and the equipment in this device is transmitting terminal;
The another kind that Figure 11 provides for the embodiment of the present invention detects the apparatus structure schematic diagram of multi-path-apparatus performance, and the equipment in this device is receiving terminal.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In order to describe more clearly the method that detects multi-path-apparatus performance, first the system configuration of transmission and checkout gear is described.
As shown in Figure 1, be the system construction drawing of transmitting terminal and checkout gear.Checkout gear obtains the input signal that passes through at least two channel transfer that transmitting terminal sends, and according to input signal, analyzes the performance of this transmitting terminal.
The present embodiment provides a kind of method that detects multi-path-apparatus performance, as shown in Figure 2, comprises the following steps:
201, obtain the input signal that passes through at least two channel transfer that transmitting terminal sends.
As shown in Figure 1, in prior art, comprise a mixer in checkout gear, mixer is mainly used in, when the input signal sending via multichannel that checkout gear receives, multichannel input signal being merged into the signal of a passage.
Concrete, checkout gear calculates the testing result of transmitting terminal according to the output signal of mixer, and still, the testing result of the input signal calculating transmitting terminal that checkout gear sends according to transmitting terminal is more accurate; Due to, directly comparatively complicated according to the method for input signal calculating testing result, therefore, in order to improve the accuracy of testing result, and do not increase the complexity of computational process, checkout gear, when calculating the testing result of transmitting terminal according to the output signal of mixer, is considered the loss value of mixer.
In order to make place mat for subsequent step, checkout gear obtains the input signal that transmitting terminal sends.
202, the correlation of input signal is calculated, obtained input signal correlation information.
The loss value of mixer is relevant with the correlation information of input signal, and therefore, in order to calculate more accurately the loss value of mixer, checkout gear calculates the correlation of input signal, obtains input signal correlation information.
203, according to input signal and input signal correlation information, the loss value of mixer is calculated.
The loss value of mixer is relevant with the factors such as correlation of input signal and input signal, and the loss value of mixer is the value of a variation.
Therefore, checkout gear calculates the loss value of mixer according to the input signal of current time and input signal correlation information, makes the loss value that calculates more accurate.
204, according to input signal, loss value, calculate the testing result of transmitting terminal, testing result is for describing the performance of transmitting terminal.
Checkout gear need to detect transmitting terminal according to input signal, but, in order to reduce the complexity of testing process, checkout gear carries out input signal again the calculating of testing result after mixer, therefore, when carrying out testing result calculating according to the signal of mixer output, need to consider the loss value of mixer.
Concrete, checkout gear calculates the testing result of transmitting terminal according to input signal, loss value, and testing result is for describing the performance of transmitting terminal.
Adopt after such scheme, before calculating the testing result of transmitting terminal, checkout gear, according to the input signal obtaining, calculates input signal correlation information, and according to input signal and input signal correlation information, the loss value of mixer is calculated; Finally according to the testing result of input signal and loss value calculating transmitting terminal; When calculating the loss value of mixer, considered the correlation information of input signal, make the loss value that calculates more accurate, and then make testing result more accurate.
As the improvement of embodiment, the present embodiment provides the another kind of method that detects multi-path-apparatus performance, and what the method was described is that checkout gear detects the performance of transmitting terminal, as shown in Figure 3, comprises the following steps:
301, obtain the input signal that passes through at least two channel transfer that transmitting terminal sends.
As shown in Figure 1, in prior art, in checkout gear, comprise a mixer, during the input signal sending via multichannel that mixer is mainly used in checkout gear to receive, multichannel input signal is merged into the signal of a passage.
Concrete, checkout gear calculates the testing result of transmitting terminal according to the output signal of mixer, and still, the testing result of the input signal calculating transmitting terminal that checkout gear sends according to transmitting terminal is more accurate; Due to, directly comparatively complicated according to the method for input signal calculating testing result, therefore, in order to improve the accuracy of testing result, and do not increase the complexity of computational process, checkout gear, when calculating the testing result of transmitting terminal according to the output signal of mixer, is considered the loss value of mixer.
In order to make place mat for subsequent step, checkout gear obtains the input signal that transmitting terminal sends.
302, according to predetermined manner, the phase place of input signal is adjusted to identical with checkout gear preset phase to be detected.
Checkout gear can only detect a certain phase place of input signal at every turn, that is to say, the performance when phase place of the input signal that checkout gear sends transmitting terminal is preset phase detects.
When the phase place of input signal is identical with checkout gear preset phase, can improve the accuracy of testing result of the calculating of checkout gear.
Therefore, checkout gear, after obtaining input signal, is adjusted to the phase place of input signal identical with checkout gear preset phase to be detected, and the testing result that checkout gear is calculated according to the input signal after adjusting is more accurate.
Further alternative, can in analog domain, the phase place to input signal adjust, also can in numeric field, the phase place to input signal adjust; As shown in Figure 4, be the structural representation of checkout gear detection transmitting terminal performance, and the phase place to input signal is adjusted in analog domain; As shown in Figure 5, be the structural representation of checkout gear detection transmitting terminal performance, and the phase place to input signal is adjusted in numeric field.
As an embodiment of the present embodiment, in analog domain, to the phase place adjustment of input signal, can comprise: by hardware device, the phase place of input signal is adjusted, as: phase shifter etc.;
Further alternative, can also in numeric field, by the phase modification of certain carrier wave of input signal, be checkout gear preset phase to be detected.
The present embodiment is not construed as limiting revise the method for the phase place of input signal in numeric field, is technology well known to those skilled in the art, can set according to actual needs, and for example, the parameter of the phase place of change control input signal, does not repeat them here.
This enforcement is to adjusting the method for input signal, for adjusting the type of the hardware of input signal phase place, the form of the 3rd carrier wave, as: waveform, phase place, amplitude etc. are not construed as limiting, and can set according to actual needs, do not repeat them here.
303, the correlation of input signal is calculated, obtained input signal correlation information.
The loss value of mixer is relevant with the correlation information of input signal, and therefore, in order to calculate more accurately the loss value of mixer, checkout gear calculates the correlation of input signal, obtains input signal correlation information.
As an embodiment of the present embodiment, according to formula:
calculate the correlation of input signal, wherein, X (t) is for passing through the input signal of a channel transfer; Y (t+ τ) is for passing through the input signal of another channel transfer.
Further alternative, can, according to above-mentioned formula, in all input signals that receive, to the input signal by two channel transfer, carry out correlation operation successively; Or the input signal of choosing by some channel transfer is reference signal, then, according to above-mentioned formula, calculate successively the correlation of other signal and reference signal in all input signals in input signal.
Further alternative, in order to increase checkout gear, calculate the accuracy of input signal correlation information, correlation to input signal is calculated, obtaining input signal correlation information can be: to adjusting the correlation of the input signal after phase place, calculate, obtain input signal correlation information.
The present embodiment is not construed as limiting calculating the method for the correlation information of input signal, can set according to actual needs, does not repeat them here.
304, according to input signal and input signal correlation information, the loss value of mixer is calculated.
The loss value of mixer is relevant with the factors such as correlation of input signal and input signal, and the loss value of mixer is the value of a variation.
Therefore, checkout gear calculates the loss value of mixer according to the input signal of current time and input signal correlation information, makes the loss value that calculates more accurate.
As an embodiment of the present embodiment, according to formula
10 loss values that calculate mixer, wherein, r is the coefficient correlation between X and Y; That is, according to formula
calculate by the correlation of the signal of two channel transfer; X, Y represents by the input signal of two channel transfer; N is constant.
305, according to input signal, loss value, calculate the testing result of transmitting terminal, testing result is for describing the performance of transmitting terminal.
In order to reduce checkout gear, according to input signal, calculate the complexity of testing result, checkout gear is after getting the input signal that passes through at least two channel transfer of transmitting terminal transmission, the input signal receiving is sent to mixer, and the input that multichannel input signal is merged into a passage is believed No. 201.
Checkout gear calculates testing result according to the output signal of mixer, because mixer is when merging input signal, may cause loss to input signal, therefore, in order to increase the accuracy of testing result, at checkout gear, calculating testing result is to consider the loss value of mixer.
Concrete, checkout gear calculates the testing result of transmitting terminal according to input signal, loss value, and testing result is for describing the performance of transmitting terminal.
The method that the present embodiment detects the performance of transmitting terminal checkout gear is not construed as limiting, and the method is technology well known to those skilled in the art, does not repeat them here.
Adopt after such scheme, before calculating the testing result of transmitting terminal, checkout gear is according at least two the channel transfer input signals that pass through of the transmitting terminal transmission of obtaining, calculate input signal correlation information, and according to input signal, input signal correlation information, the loss value of mixer is calculated; Finally according to the testing result of input signal and loss value calculating transmitting terminal; When calculating the loss value of mixer, consider input signal correlation information, make the loss value that calculates more accurate, and then make testing result more accurate.
In this simultaneously, by adjusting phase place and the amplitude of the input signal of a passage, can time the checkout gear performance of freely testing the transmitting terminal under the amplitude-phase weighting of each passage in multi-channel system, increased the activity of checkout gear.
As the improvement of embodiment, the present embodiment provides the another kind of method that detects multi-path-apparatus performance, and what the method was described detects the performance of receiving terminal for checkout gear, as shown in Figure 6, specifically comprises the following steps:
601, respectively amplitude and the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer are arranged.
As an embodiment of the present embodiment, checkout gear mainly detects the performance of receiving terminal reception signal, and therefore, checkout gear, by the mode to receiving terminal transmitted signal, detects the performance of receiving terminal.
Common, the signal that receiving terminal receives can comprise useful signal and interference signal, due to, adopt AAS technology or MIMO or other multichannel technology, therefore, checkout gear is first for receiving terminal generates the test signal for detection of multiple channel test systematic function.
Concrete, checkout gear arranges amplitude and the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer respectively.
Further alternative, the amplitude of useful signal and interference signal and phase place can arrange at analog domain, also can arrange at numeric field.
As an embodiment of the present embodiment, analog domain setting, can comprise: by attenuator, respectively the amplitude of the useful signal by least two channel transfer and the interference signal by least two channel transfer is arranged;
By phase shifter, respectively the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer is arranged.
Further alternative, the useful signal that passes through at least two channel transfer and amplitude and the phase place of passing through each carrier wave of interference signal of at least two channel transfer can be set respectively in numeric field.
Wherein, as shown in Figure 7, for checkout gear detects the structural representation of receiving terminal performance, and in analog domain, the phase place of useful signal and interference signal and amplitude are arranged; As shown in Figure 8, for checkout gear detects the structural representation of receiving terminal performance, and in numeric field, the phase place of useful signal and interference signal and amplitude are arranged.
The present embodiment to arranging the amplitude of useful signal and interference signal and the method for phase place is not construed as limiting in numeric field, for technology well known to those skilled in the art, can set according to actual needs, for example, can, for the amplitude of change control useful signal and interference signal and the parameter of phase place, not repeat them here.
The method that the present embodiment generates useful signal and interference signal to checkout gear is not construed as limiting, and for technology well known to those skilled in the art, does not repeat them here.
602, respectively useful signal after arranging and that transmit by same channels and interference signal are merged, obtain checkout gear output signal.
The signal through each channel transfer that receiving terminal receives all comprises corresponding useful signal and interference signal.
Therefore, checkout gear is after the amplitude of the useful signal to by least two channel transfer and the interference signal by least two channel transfer and phase place arrange, respectively useful signal after arranging and that transmit by same channels and interference signal are merged, obtain checkout gear output signal.
The present embodiment is not construed as limiting the method for useful signal and interfere information merging, is technology well known to those skilled in the art, and can sets according to actual needs, does not repeat them here.
603, to receiving terminal, send checkout gear output signal, so that checkout gear detects the performance of receiving terminal.
In order to make checkout gear pass through to send output signal to receiving terminal, detect the performance of receiving terminal, checkout gear sends checkout gear output signal to receiving terminal.
The method that the present embodiment detects receiving terminal performance to checkout gear is not construed as limiting, and for technology well known to those skilled in the art, does not repeat them here.
Adopt after such scheme, checkout gear is before detecting receiving terminal performance, first be that receiving terminal generates useful signal and the interference signal for detection of performance, checkout gear arranges amplitude and the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer respectively; Then, respectively useful signal after arranging and that transmit by same channels and interference signal are merged, obtain checkout gear output signal; To receiving terminal, send checkout gear output signal, so that checkout gear detects the performance of receiving terminal.Make the loss value that calculates more accurate, and then make testing result more accurate, increased the flexibility that checkout gear detects receiving terminal simultaneously.
The present embodiment provides a kind of device that detects multi-path-apparatus performance, as shown in Figure 9, comprising: acquiring unit 91, the first computing unit 92, the second computing unit 93, the 3rd computing unit 94.
Wherein, acquiring unit 91, the input signal that passes through at least two channel transfer sending for obtaining transmitting terminal.
The first computing unit 92, calculates for the correlation of input signal that acquiring unit is obtained, obtains input signal correlation information.
The second computing unit 93, the input signal correlation information calculating for the input signal that obtains according to acquiring unit and the first computing unit calculates the loss value of mixer.
The 3rd computing unit 94, calculates the testing result of transmitting terminal for the input signal obtaining according to acquiring unit, the loss value of the second computing unit calculating, and testing result is for describing the performance of transmitting terminal.
Adopt after such scheme, before calculating the testing result of transmitting terminal, the input signal that the first computing unit obtains according to acquiring unit, calculates input signal correlation information, and the second computing unit calculates the loss value of mixer according to input signal and input signal correlation information; Finally, the 3rd computing unit calculates the testing result of transmitting terminal according to input signal and loss value; When calculating the loss value of mixer, considered the correlation information of input signal, make the loss value that calculates more accurate, and then make testing result more accurate.
A kind of improvement as embodiment, the present embodiment provides the another kind of device that detects multi-path-apparatus performance, this dress can be applied to detect the performance of transmitting terminal, as shown in figure 10, comprising: acquiring unit 101, adjustment unit 102, the first computing unit 103, the second computing unit 104, the 3rd computing unit 105.
Concrete, adjustment unit 102 comprises: the first adjusting module 1021, the second adjusting module 1022.
Wherein, acquiring unit 101, the input signal that passes through at least two channel transfer sending for obtaining transmitting terminal.
Concrete, checkout gear calculates the testing result of transmitting terminal according to the output signal of mixer, and still, the testing result of the input signal calculating transmitting terminal that checkout gear sends according to transmitting terminal is more accurate; Due to, directly comparatively complicated according to the method for input signal calculating testing result, therefore, in order to improve the accuracy of testing result, and do not increase the complexity of computational process, checkout gear, when calculating the testing result of transmitting terminal according to the output signal of mixer, is considered the loss value of mixer.
Further alternative, the correlation of the input signal that the first computing unit obtains acquiring unit is calculated, obtaining input signal correlation information can be: the first computing unit calculates adjusting the correlation of the input signal after phase place, obtains input signal correlation information.
In order to make place mat for subsequent step, acquiring unit obtains the input signal that transmitting terminal sends.
When the phase place of input signal is identical with checkout gear preset phase, can improve the accuracy of testing result of the calculating of checkout gear.
Therefore, acquiring unit is after obtaining input signal, and adjustment unit is adjusted to the phase place of input signal identical with checkout gear preset phase to be detected, and the testing result that checkout gear is calculated according to the input signal after adjusting is more accurate.
Concrete, the first adjusting module 1021, adjusts to identical with checkout gear preset phase to be detected for the phase place of the input signal that acquiring unit obtained by phase shifter.
The second adjusting module 1022 is checkout gear preset phase to be detected for the phase modification of certain carrier wave of the input signal that acquiring unit obtained at numeric field.
The first computing unit 103, calculates for the correlation of input signal that acquiring unit is obtained, obtains input signal correlation information.
The loss value of mixer is relevant with the correlation information of input signal, and therefore, in order to calculate more accurately the loss value of mixer, the first computing unit calculates the correlation of input signal, obtains input signal correlation information.
The second computing unit 104, the input signal correlation information calculating for the input signal that obtains according to acquiring unit and the first computing unit calculates the loss value of mixer.
The loss value of mixer is relevant with the factors such as correlation of input signal and input signal, and the loss value of mixer is the value of a variation.
Therefore, the second computing unit calculates the loss value of mixer according to the input signal of current time and input signal correlation information, makes the loss value that calculates more accurate.
The 3rd computing unit 105, calculates the testing result of transmitting terminal for the input signal obtaining according to acquiring unit, the loss value of the second computing unit calculating, and testing result is for describing the performance of transmitting terminal.
Checkout gear calculates testing result according to the output signal of mixer, because mixer is when merging input signal, may cause loss to input signal, therefore, in order to increase the accuracy of testing result, at checkout gear, calculating testing result is to consider the loss value of mixer.
Concrete, the 3rd computing unit calculates the testing result of transmitting terminal according to input signal, loss value, and testing result is for describing the performance of transmitting terminal.
Adopt after such scheme, calculate the testing result of transmitting terminal at the 3rd computing unit before, transmitting terminal that the first computing unit obtains according to acquiring unit sends passes through at least two channel transfer input signals, calculate input signal correlation information, the second computing unit also calculates the loss value of mixer according to input signal, input signal correlation information; Finally, the 3rd computing unit calculates the testing result of transmitting terminal according to input signal and loss value; When calculating the loss value of mixer, consider input signal correlation information, make the loss value that calculates more accurate, and then make testing result more accurate.
In this simultaneously, by adjusting phase place and the amplitude of the input signal of each passage, can make checkout gear freely test the performance of the transmitting terminal under the amplitude-phase weighting of each passage in multi-channel system, increase the activity of checkout gear.
The present embodiment provides the another kind of device that detects multi-path-apparatus performance, and this device can be applied to detect the performance of receiving terminal, as shown in figure 11, comprising: the first setting unit 111, the second setting unit 112, transmitting element 113.
Concrete, the first setting unit 111 comprises: first arranges module 1111, second arranges module 1112, the 3rd module 1113 is set.
Wherein, the first setting unit 111, for arranging amplitude and the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer respectively.
Common, the signal that receiving terminal receives can comprise useful signal and interference signal, due to, in communication system, adopt AAS technology, therefore, the first setting unit arranges amplitude and the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer respectively.
Further alternative, first arranges module 1111, for respectively the amplitude of the useful signal by least two channel transfer and the interference signal by least two channel transfer being arranged by attenuator.
Second arranges module 1112, for respectively the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer being arranged by phase shifter.
The 3rd arranges module 1113, for the useful signal that passes through at least two channel transfer and amplitude and the phase place of passing through the interference signal of at least two channel transfer are set respectively at numeric field.
The second setting unit 112, merges for useful signal and interference signal after respectively the first setting unit being arranged and that transmit by same channels, obtains checkout gear output signal.
The signal through each channel transfer that receiving terminal receives all comprises corresponding useful signal and interference signal.
Therefore, the first setting unit is after the amplitude of the useful signal to by least two channel transfer and the interference signal by least two channel transfer and phase place arrange, the second setting unit merges useful signal after arranging and that transmit by same channels and interference signal respectively, obtains checkout gear output signal.
Transmitting element 113, for sending checkout gear output signal to receiving terminal, so that checkout gear detects the performance of receiving terminal.
In order to make checkout gear pass through to send output signal to receiving terminal, detect the performance of receiving terminal, transmitting element sends checkout gear output signal to receiving terminal.
The method that the present embodiment detects receiving terminal performance to checkout gear is not construed as limiting, and for technology well known to those skilled in the art, does not repeat them here.
Adopt after such scheme, checkout gear is before detecting receiving terminal performance, first be that receiving terminal generates useful signal and the interference signal for detection of performance, the first setting unit arranges amplitude and the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer respectively; Then, the second setting unit merges useful signal after arranging and that transmit by same channels and interference signal respectively, obtains checkout gear output signal; Transmitting element sends checkout gear output signal to receiving terminal, so that checkout gear detects the performance of receiving terminal.Make the loss value that calculates more accurate, and then make testing result more accurate, increased the flexibility of checkout gear simultaneously.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium can read, as the floppy disk of computer, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by the described protection range with claim.
Claims (12)
1. a method that detects multi-path-apparatus performance, is characterized in that,
Obtain the input signal that passes through at least two channel transfer that transmitting terminal sends;
Correlation to described input signal is calculated, and obtains input signal correlation information;
According to described input signal and described input signal correlation information, the loss value of mixer is calculated;
According to described input signal, described loss value, calculate the testing result of transmitting terminal, described testing result is for describing the performance of described transmitting terminal.
2. the method for detection multi-path-apparatus performance according to claim 1, is characterized in that, in the described correlation to described input signal, calculates, and before obtaining input signal correlation information, described method also comprises:
According to predetermined manner, the phase place of described input signal is adjusted to identical with checkout gear preset phase to be detected;
The described correlation to described input signal is calculated, and obtains input signal correlation information to be: to adjusting the correlation of the input signal after phase place, calculate, obtain input signal correlation information.
3. the method for detection multi-path-apparatus performance according to claim 1 and 2, is characterized in that, described method also comprises:
Respectively amplitude and the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer are arranged;
Respectively useful signal after arranging and that transmit by same channels and interference signal are merged, obtain checkout gear output signal;
To receiving terminal, send described checkout gear output signal, so that checkout gear detects the performance of described receiving terminal.
4. the method for detection multi-path-apparatus performance according to claim 3, is characterized in that, describedly respectively amplitude and the phase place setting of the useful signal by least two channel transfer and the interference signal by least two channel transfer is comprised:
By attenuator, respectively the amplitude of the useful signal by least two channel transfer and the interference signal by least two channel transfer is arranged;
By phase shifter, respectively the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer is arranged.
5. the method for detection multi-path-apparatus performance according to claim 3, it is characterized in that, describedly respectively the amplitude of the useful signal by least two channel transfer and the interference signal by least two channel transfer and phase place are also arranged and comprised:
Amplitude and the phase place of the described useful signal by least two channel transfer and the described interference signal by least two channel transfer are set respectively in numeric field.
6. the method for detection multi-path-apparatus performance according to claim 2, is characterized in that, describedly according to predetermined manner, the phase place of described input signal is adjusted to and checkout gear preset phase to be detected identical comprising:
By described phase shifter, the phase place of described input signal is adjusted to identical with described checkout gear preset phase to be detected; Or,
It in numeric field, by the phase modification of certain carrier wave of described input signal, is described checkout gear preset phase to be detected.
7. a device that detects multi-path-apparatus performance, is characterized in that,
Acquiring unit, the input signal that passes through at least two channel transfer sending for obtaining transmitting terminal;
The first computing unit, calculates for the correlation of described input signal that described acquiring unit is obtained, obtains input signal correlation information;
The second computing unit, the described input signal correlation information calculating for the described input signal that obtains according to described acquiring unit and described the first computing unit calculates the loss value of mixer;
The 3rd computing unit, the described loss value calculating for the described input signal obtaining according to described acquiring unit, described the second computing unit calculates the testing result of transmitting terminal, and described testing result is for describing the performance of described transmitting terminal.
8. the device of detection multi-path-apparatus performance according to claim 7, is characterized in that, described device also comprises:
Adjustment unit, adjusts to identical with checkout gear preset phase to be detected for the phase place of the described input signal that described acquiring unit obtained according to predetermined manner;
The correlation of the described input signal that described the first computing unit obtains described acquiring unit is calculated, obtaining input signal correlation information is: described the first computing unit calculates adjusting the correlation of the input signal after phase place, obtains input signal correlation information.
9. according to the device of the detection multi-path-apparatus performance described in claim 7 or 8, it is characterized in that, described device also comprises:
The first setting unit, for arranging amplitude and the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer respectively;
The second setting unit, merges for useful signal and interference signal after respectively described the first setting unit being arranged and that transmit by same channels, obtains checkout gear output signal;
Transmitting element, for sending described checkout gear output signal, so that checkout gear detects the performance of described receiving terminal to receiving terminal.
10. the device of detection multi-path-apparatus performance according to claim 9, is characterized in that, described the first setting unit comprises:
First arranges module, for respectively the amplitude of the useful signal by least two channel transfer and the interference signal by least two channel transfer being arranged by attenuator;
Second arranges module, for respectively the phase place of the useful signal by least two channel transfer and the interference signal by least two channel transfer being arranged by phase shifter.
The device of 11. detection multi-path-apparatus performances according to claim 9, is characterized in that, described the first setting unit also comprises:
The 3rd arranges module, for amplitude and the phase place of the described useful signal by least two channel transfer and the described interference signal by least two channel transfer are set respectively at numeric field.
The device of 12. detection multi-path-apparatus performances according to claim 8, is characterized in that, described adjustment unit also comprises:
The first adjusting module, adjusts to identical with described checkout gear preset phase to be detected for the phase place of the described input signal that described acquiring unit obtained by described phase shifter; Or,
The second adjusting module is described checkout gear preset phase to be detected for the phase modification of certain carrier wave of the described input signal that described acquiring unit obtained at numeric field.
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