CN109981515B - Method and device for detecting multichannel signals - Google Patents
Method and device for detecting multichannel signals Download PDFInfo
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- CN109981515B CN109981515B CN201910175011.6A CN201910175011A CN109981515B CN 109981515 B CN109981515 B CN 109981515B CN 201910175011 A CN201910175011 A CN 201910175011A CN 109981515 B CN109981515 B CN 109981515B
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Abstract
The embodiment of the invention discloses a method and a device for detecting a multichannel signal, wherein the method comprises the following steps: grouping cache data of each path of the multichannel signal to obtain at least one cache group; determining N +1 time slots according to the number N of the caches in each cache group; for the first N time slots, performing data processing operation on the cache data according to a set operation strategy in sequence according to the time slot sequence aiming at the cache in each cache group to obtain the peak value ratio of each time slot of each cache group in the first N time slots; for the last time slot, determining the maximum value of the peak ratio corresponding to each cache group; determining a maximum value to be judged and a cache group corresponding to the maximum value to be judged from the maximum values of the peak ratio of all the cache groups; and outputting the cache data in the cache group corresponding to the maximum value to be judged and the cache corresponding to the maximum value to be judged, corresponding to the maximum value to be judged not less than the set threshold value.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for detecting a multi-channel signal.
Background
In a conventional multi-channel signal detection scheme, data of all channels need to be buffered, and then the same signal processing operation is performed on the data of each channel. Therefore, when the number of channels is large, a large amount of computing resources need to be consumed, and high power consumption can be generated in actual engineering application.
Disclosure of Invention
In view of this, embodiments of the present invention are expected to provide a method and an apparatus for detecting a multi-channel signal, which can implement multiplexing of operation resources, reduce operation resources consumed in a multi-channel signal detection process, and reduce power consumption generated in actual engineering applications.
The technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for detecting a multichannel signal, where the method includes:
correspondingly caching data of each channel of the multi-channel signal, and then grouping the caches of all the channels to obtain at least one cache group;
determining N +1 time slots according to the number N of the caches in each cache group;
for the first N time slots in the N +1 time slots, performing data processing operation on the cache data according to a set operation strategy in sequence according to the time slot sequence aiming at the cache in each cache group to obtain a peak value ratio value corresponding to each time slot of each cache group in the first N time slots;
for the last time slot in the N +1 time slots, determining the maximum value of the peak ratio corresponding to each cache group according to the peak ratio value corresponding to each time slot in the first N time slots of each cache group;
determining a maximum value to be judged and a cache group corresponding to the maximum value to be judged from the maximum values of peak ratio corresponding to all cache groups;
and outputting the cache data in the cache group corresponding to the maximum value to be judged and the cache corresponding to the maximum value to be judged, corresponding to the maximum value to be judged not less than the set threshold value.
In a second aspect, an embodiment of the present invention provides an apparatus for detecting a multi-channel signal, where the apparatus includes: a grouping section, a first determining section, an arithmetic section, a second determining section, a third determining section, and an output section; wherein the content of the first and second substances,
the grouping part is configured to group the caches of all channels after correspondingly caching the data of each channel of the multi-channel signal to obtain at least one cache group;
the first determining part is configured to determine N +1 time slots according to the number N of buffers in each buffer group;
the operation part is configured to perform data processing operation on the cache data according to a set operation strategy in sequence according to the time slot sequence aiming at the first N time slots in the N +1 time slots and aiming at the cache in each cache group, and obtain the peak value ratio value corresponding to each time slot in the first N time slots of each cache group;
the second determining part is configured to determine, for the last time slot of the N +1 time slots, a maximum peak ratio value corresponding to each buffer group according to a peak ratio value corresponding to each time slot in the previous N time slots of each buffer group;
the third determining part is configured to determine a maximum value to be judged and a cache group corresponding to the maximum value to be judged from peak ratio maximum values corresponding to all cache groups;
and the output part is configured to output the cache data in the cache corresponding to the maximum value to be judged in the cache group corresponding to the maximum value to be judged, wherein the cache data corresponds to the maximum value to be judged and is not smaller than a set threshold value.
In a third aspect, an embodiment of the present invention provides an apparatus for detecting a multichannel signal, where the apparatus includes: the device comprises a cache, a time slot selection module, an operation module, a comparison and judgment result module and a multi-selection 1 output module; wherein the content of the first and second substances,
the number of the caches is consistent with the number of the channels to be detected, and each cache is used for caching corresponding channel data; grouping all the caches to obtain at least one cache group, wherein the number of the caches in each cache group is N;
the number of the time slot selection modules is consistent with that of the cache groups, each time slot selection module corresponds to one cache group, and the time slot selection module is used for determining N +1 time slots and transmitting cache data in the cache to the operation module according to the cache in the corresponding cache group and the time slot sequence;
the number of the operation modules is consistent with that of the cache groups, each operation module corresponds to one cache group, and the operation modules are configured to perform data processing operation on cache data according to a set operation strategy in sequence of time slots for the first N time slots in the N +1 time slots according to the cache in each cache group, so as to obtain a peak value occupation ratio value corresponding to each time slot of each cache group in the first N time slots; and for the last time slot in the N +1 time slots, determining the maximum peak ratio value corresponding to each buffer group according to the peak ratio value corresponding to each time slot in the first N time slots of each buffer group;
the comparison judgment result module is configured to determine a maximum value to be judged and a cache group corresponding to the maximum value to be judged from the maximum values of peak ratio corresponding to all the cache groups;
and the multiple-selection-1 output module is configured to output the cache data in the cache group corresponding to the maximum value to be judged, which corresponds to the maximum value to be judged, and the cache data in the cache corresponding to the maximum value to be judged, corresponding to the maximum value to be judged not less than a set threshold value.
The embodiment of the invention provides a method and a device for detecting a multi-channel signal; after caching the multichannel signals according to the channels, grouping the caches, performing set data processing operation on the cache data by each group according to the time slot sequence corresponding to the cache, detecting the cache data in the cache where the effective signals are located from all the cache groups according to the operation result, and outputting the cache data, so that the channels where the effective signals are located in the multichannel signals are obtained. Therefore, when data processing operation is carried out, the operation processing modules corresponding to the cache groups can be multiplexed according to the time slot sequence for each cache group, the operation processing modules corresponding to the caches corresponding to each channel are not required to be arranged, the operation resources consumed in the multi-channel signal detection process are reduced, and the power consumption generated in the practical engineering application is reduced.
Drawings
Fig. 1 is a schematic signal processing flow diagram of a conventional multichannel signal detection scheme for short-wave communication;
fig. 2 is a schematic flowchart of a method for detecting a multi-channel signal according to an embodiment of the present invention;
fig. 3 is a signal flow diagram illustrating a specific method for detecting a multi-channel signal according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an apparatus for detecting a multi-channel signal according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a specific hardware structure of a multi-channel signal detection apparatus according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Compared with the traditional chip circuit, the Field Programmable Gate Array (FPGA) has the important characteristic that the logic blocks and connections in the FPGA can be changed according to the requirements of a designer, that is, the designer can design the logic according to the requirements to realize the assumed functions. And the FPGA mainly adopts parallel operation, so that the FPGA has great advantages when large-scale similar data operation is carried out.
Short-wave communication refers to a communication technology for information transmission by using electromagnetic waves with frequency range of 3MHz to 30MHz and wavelength of 10 meters to 100 meters. In practical engineering projects, a frequency band of 1.5MHz to 30MHz is sometimes used to fully utilize spectrum resources.
In a conventional multichannel signal detection scheme for short-wave communication, referring to a signal processing flow schematic shown in fig. 1, taking signal detection of 360 channels as an example, as can be seen from fig. 1, the conventional multichannel signal detection scheme first buffers data of all channels respectively; then, performing the same operation on the cache data of each channel, such as autocorrelation operation, frequency spectrum shifting, Fast Fourier Transform (FFT) and peak decision operation; and then, by comparing the judgment results, outputting the cache data corresponding to the channel where the effective signal is located by using 360-to-1 selection. Although the conventional multi-channel signal detection scheme needs to perform the same data operation on the cache data of each channel, so that the conventional multi-channel signal detection scheme can be realized through the FPGA, under the condition that the number of channels is large, the conventional multi-channel signal detection scheme consumes a large amount of operation resources, so that high power consumption is generated in the realization process.
Because the same operation needs to be performed on the cache data of each channel in the conventional multi-channel signal detection scheme, the embodiment of the invention is expected to multiplex the operation resources for performing the operation on the cache data so as to reduce the operation resources consumed in the multi-channel signal detection process. Based on this, referring to fig. 2, a method for detecting a multi-channel signal according to an embodiment of the present invention is shown, where the method may be applied to a short-wave communication device, and the method may include:
s201: correspondingly caching data of each channel of the multi-channel signal, and then grouping the caches of all the channels to obtain at least one cache group;
s202: determining N +1 time slots according to the number N of the caches in each cache group;
s203: for the first N time slots in the N +1 time slots, performing data processing operation on the cache data according to a set operation strategy in sequence according to the time slot sequence aiming at the cache in each cache group to obtain a peak value ratio value corresponding to each time slot of each cache group in the first N time slots;
s204: for the last time slot in the N +1 time slots, determining the maximum value of the peak ratio corresponding to each cache group according to the peak ratio value corresponding to each time slot in the first N time slots of each cache group;
s205: determining a maximum value to be judged and a cache group corresponding to the maximum value to be judged from the maximum values of peak ratio corresponding to all cache groups;
s206: and outputting the cache data in the cache group corresponding to the maximum value to be judged and the cache corresponding to the maximum value to be judged, corresponding to the maximum value to be judged not less than the set threshold value.
According to the technical scheme shown in fig. 2, after the multi-channel signals are cached according to the channels, the caches are grouped, each group performs set data processing operation on the cache data according to the time slot sequence corresponding to the caches, and detects and outputs the cache data in the cache where the effective signals are located from all the cache groups according to the operation result, so that the channels where the effective signals are located in the multi-channel signals are obtained. Therefore, when data processing operation is carried out, the operation processing modules corresponding to the cache groups can be multiplexed according to the time slot sequence for each cache group, the operation processing modules corresponding to the caches corresponding to each channel are not required to be arranged, the operation resources consumed in the multi-channel signal detection process are reduced, and the power consumption generated in the practical engineering application is reduced.
For the technical solution shown in fig. 2, in a possible implementation manner, the performing data processing operation on the cache data according to the time slot sequence and the set operation policy in turn for the cache in each cache group to obtain the peak ratio value corresponding to each time slot of each cache group in the first N time slots includes:
and according to the time slot sequence corresponding to the caches in each cache group, sequentially performing autocorrelation operation, frequency spectrum shifting operation, FFT operation and peak value judgment operation on the cache data in the caches to obtain the peak value occupation ratio of each cache in each cache group.
It should be noted that, in the first N time slots, each cache in the cache group occupies the time of one time slot to perform data processing operation, so that the caches in each cache group can sequentially perform the same series of data processing operations according to the time slot sequence; in the practical application process, only the corresponding operation module capable of realizing the data processing operation process can be arranged for each cache group, so that the multiplexing of the operation modules is realized, the corresponding operation module does not need to be arranged for each cache, and the consumption of operation resources is reduced.
For the technical solution shown in fig. 2, in a possible implementation manner, the determining a maximum peak ratio value corresponding to each buffer group according to a peak ratio value corresponding to each time slot in the first N time slots of each buffer group includes:
and for each cache group, determining the maximum value of the peak ratio values of all the caches of each cache group as the maximum value of the peak ratio corresponding to each cache group, and storing the cache identifier corresponding to the maximum value of the peak ratio corresponding to each cache group.
It should be noted that, since the peak ratio value of each cache is obtained in the first N time slots, in the last time slot of the N +1 time slots, the maximum peak ratio value corresponding to each cache group may be determined according to the peak ratio values of all the caches in each cache group, and the cache identifier corresponding to the maximum peak ratio value corresponding to each cache group may also be retained, so as to facilitate subsequent searching for the cache corresponding to the maximum value to be determined.
Based on the foregoing implementation manner, preferably, the determining a maximum value to be determined and a cache group corresponding to the maximum value to be determined from peak ratio maximum values corresponding to all cache groups includes:
determining the maximum value of the peak value occupation ratio maximum values corresponding to all the cache groups as the maximum value to be judged, and storing the cache group identification corresponding to the maximum value to be judged and the cache identification corresponding to the cache group corresponding to the maximum value to be judged.
It should be noted that, also in the last time slot of the N +1 time slots, after the peak ratio maximum values corresponding to all the buffer groups are obtained, the peak ratio maximum values of all the buffers can be obtained therefrom, and the detection target of the peak ratio maximum values of all the buffers is taken as the maximum value to be determined, so as to detect whether there is a useful signal in the buffer data in the buffer corresponding to the maximum value to be determined.
Based on the foregoing implementation manner, preferably, outputting, in response to that the maximum value to be determined is not less than a set threshold value, cache data in a cache corresponding to the maximum value to be determined in a cache group corresponding to the maximum value to be determined, includes:
comparing the maximum value to be judged with a set threshold value;
when the maximum value to be judged is not smaller than the set threshold value, determining cache data corresponding to the maximum value to be judged based on a corresponding cache identifier in a cache group corresponding to the maximum value to be judged;
and outputting the cache data in the cache corresponding to the maximum value to be judged.
It should be noted that, when the maximum value to be determined is not less than the set threshold value, it may be considered that a useful signal exists in the cache corresponding to the maximum value to be determined, so that the corresponding cache may be determined according to the corresponding cache identifier in the cache group corresponding to the maximum value to be determined, and the determined cache data in the cache is output, specifically, the cache data in the cache of this way may be output through the 360-to-1 output module.
Based on the same inventive concept of the foregoing technical solutions, the embodiments of the present invention further illustrate the foregoing technical solutions by specific implementation examples. In the present embodiment, the signals of 360 channels are set to be detected, and a specific signal processing flow is shown in fig. 3,
firstly, respectively caching data of 360 channels which are input simultaneously through 360 caching modules, specifically, each caching module can use a block RAM resource to store input data;
secondly, grouping the cache modules, wherein 360 cache modules are divided into a group according to 15 cache modules, and the group is divided into 24 cache module groups, and the 15 cache modules in each cache module group share the subsequent operation module;
and then, dividing 15+1 into 16 time slots, wherein in each buffer group, each buffer module occupies 1 time slot and sends data to a subsequent operation module for operation, and the total time of 15 time slots is occupied. And the last time slot is used for processing the operation result of the operation module.
Specifically, in the first 15 time slots, each cache module sends the cached data to the operation module according to the time slot sequence, that is, the correlation operation, the spectrum shift operation, the FFT operation and the peak decision operation are respectively performed, and the peak decision module stores the calculation results of the 15 cache modules, calculates the maximum value at the 16 th time slot and transmits the maximum value to the following comparison decision result module, and simultaneously memorizes the time slot number and the cache number corresponding to each maximum value. In this way, in the 16 th slot, all the 24 peak decision modules find the maximum value of the peak ratio in each group, and the total number is 24.
Then, the comparison and judgment result module finds out the maximum value again in the 24 numbers, stores the cache group number where the maximum value appears, compares the maximum value with a preset threshold value, and if the maximum value is larger than or equal to the threshold value, considers that a useful signal is detected in the cache group and prepares for output.
Because the peak value judgment module already calculates the operation result of the data of each cache module of each cache group, and the number of the cache group where the maximum value is located is also known, the channel corresponding to which cache module detects the useful signal can be calculated. Therefore, the buffer data in the buffer module corresponding to the channel can be output through the 360-out-of-1 output module.
By the technical scheme shown in fig. 2 and the specific signal implementation process shown in fig. 3, after the multi-channel signal is buffered according to the channels, the buffers are grouped, each group performs the set data processing operation according to the time slot sequence, and detects the buffer where the effective signal is located from all the buffer groups according to the operation result and outputs the data therein, so as to obtain the channel where the effective signal is located in the multi-channel signal. Therefore, when data processing operation is carried out, the operation processing modules corresponding to the cache groups can be multiplexed according to the time slot sequence for each cache group, the corresponding operation processing modules do not need to be arranged aiming at the cache data of each channel, the operation resources consumed in the multi-channel signal detection process are reduced, and the power consumption generated in the practical engineering application is reduced.
Based on the same inventive concept of the foregoing embodiment, referring to fig. 4, it shows a multi-channel signal detection apparatus 40 provided by the embodiment of the present invention, where the apparatus 40 may include: a grouping section 401, a first determination section 402, an operation section 403, a second determination section 404, a third determination section 405, and an output section 406; wherein the content of the first and second substances,
the grouping part 401 is configured to group the buffers of all channels after correspondingly buffering the data of each channel of the multi-channel signal, so as to obtain at least one buffer group;
the first determining part 402 is configured to determine N +1 time slots according to the number N of buffers in each buffer group;
the operation part 403 is configured to, for the first N time slots in the N +1 time slots, sequentially perform data processing operation on the cache data according to a set operation policy according to the time slot order for the cache in each cache group, and obtain a peak ratio value corresponding to each time slot of each cache group in the first N time slots;
the second determining part 404 is configured to determine, for the last time slot of the N +1 time slots, a maximum peak ratio value corresponding to each buffer group according to a peak ratio value corresponding to each time slot in the previous N time slots of each buffer group;
the third determining part 405 is configured to determine a maximum value to be determined and a cache group corresponding to the maximum value to be determined from peak ratio maximum values corresponding to all cache groups;
the output part 406 is configured to output, corresponding to the maximum value to be determined not being less than the set threshold value, the cache data in the cache corresponding to the maximum value to be determined in the cache group corresponding to the maximum value to be determined.
In the above scheme, the operation section 403 is configured to:
and according to the time slot sequence corresponding to the caches in each cache group, sequentially performing autocorrelation operation, frequency spectrum shifting operation, FFT operation and peak value judgment operation on the cache data in the caches to obtain the peak value occupation ratio of each cache in each cache group.
In the above solution, the second determining part 404 is configured to:
and for each cache group, determining the maximum value of the peak ratio values of all the caches of each cache group as the maximum value of the peak ratio corresponding to each cache group, and storing the cache identifier corresponding to the maximum value of the peak ratio corresponding to each cache group.
In the above scheme, the third determining portion 405 is configured to:
determining the maximum value of the peak value occupation ratio maximum values corresponding to all the cache groups as the maximum value to be judged, and storing the cache group identification corresponding to the maximum value to be judged and the cache identification corresponding to the cache group corresponding to the maximum value to be judged.
In the above scheme, the output section 406 is configured to:
comparing the maximum value to be judged with a set threshold value;
when the maximum value to be judged is not smaller than the set threshold value, determining a cache corresponding to the maximum value to be judged based on a corresponding cache identifier in a cache group corresponding to the maximum value to be judged;
and outputting the cache data in the cache corresponding to the maximum value to be judged.
It is understood that in this embodiment, "part" may be part of a circuit, part of a processor, part of a program or software, etc., and may also be a unit, and may also be a module or a non-modular.
In addition, each component in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit. The integrated unit can be realized in a form of hardware or a form of a software functional module.
Based on the understanding that the technical solution of the present embodiment essentially or a part contributing to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method of the present embodiment. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
For the foregoing multi-channel signal detection apparatus 40, referring to fig. 5, a specific hardware structure of a multi-channel signal detection apparatus 40 provided in an embodiment of the present invention is shown, which may include: the device comprises a cache 501, a time slot selection module 502, an operation module 503, a comparison and judgment result module 504 and a multi-selection 1 output module 505; wherein the content of the first and second substances,
the number of the caches 501 is consistent with the number of the channels to be detected, and each cache 501 is used for caching corresponding channel data; all the caches 501 are grouped to obtain at least one cache group, wherein the number of the caches 501 in each cache group is N;
the number of the time slot selecting modules 502 is consistent with the number of the cache groups, each time slot selecting module 502 corresponds to one cache group, and the time slot selecting module 502 is configured to determine N +1 time slots and transmit the cache data in the cache 501 to the computing module 503 according to the time slot sequence of the cache 501 in the corresponding cache group;
the number of the operation modules 503 is consistent with the number of the cache groups, each operation module 503 corresponds to one cache group, and the operation module 503 is configured to, for the first N time slots of the N +1 time slots, sequentially perform data processing operation on the cache data in each cache group according to a set operation strategy according to the time slot order, and obtain a peak value occupation ratio value corresponding to each time slot of each cache group in the first N time slots; and for the last time slot in the N +1 time slots, determining the maximum peak ratio value corresponding to each buffer group according to the peak ratio value corresponding to each time slot in the first N time slots of each buffer group;
the comparison and decision result module 504 is configured to determine a maximum value to be decided and a cache group corresponding to the maximum value to be decided from the maximum values of peak ratio corresponding to all cache groups;
the multiple-choice 1 output module 505 is configured to output, corresponding to the maximum value to be decided not being less than the set threshold value, the cache data in the cache corresponding to the maximum value to be decided in the cache group corresponding to the maximum value to be decided.
For a specific hardware structure of the multi-channel signal detection apparatus 40 shown in fig. 5, in practical engineering application, refer to the foregoing technical scheme and specific implementation signal flow shown in fig. 2 or fig. 3, which are not described herein again.
It should be noted that: the technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. A method of detecting a multi-channel signal, the method comprising:
correspondingly caching data of each channel of the multi-channel signal, and then grouping the caches of all the channels to obtain at least one cache group;
determining N +1 time slots according to the number N of the caches in each cache group;
in the first N time slots in the N +1 time slots, sequentially performing data processing operation on the cache data in the cache according to a set operation strategy according to the time slot sequence corresponding to the cache in each cache group to obtain a peak value ratio value corresponding to each time slot in the first N time slots of each cache group; wherein, each buffer occupies the time of one time slot to perform data processing operation;
determining the maximum value of the peak ratio corresponding to each cache group according to the peak ratio value corresponding to each time slot of each cache group in the first N time slots in the last time slot of the N +1 time slots; determining a maximum value to be judged and a cache group corresponding to the maximum value to be judged from the maximum values of the peak ratio corresponding to all the cache groups;
and outputting the cache data in the cache group corresponding to the maximum value to be judged and the cache corresponding to the maximum value to be judged, corresponding to the maximum value to be judged not less than the set threshold value.
2. The method according to claim 1, wherein the performing data processing operations on the buffered data sequentially according to a set operation policy according to a time slot order for the buffers in each buffer group to obtain a peak ratio value corresponding to each time slot of each buffer group in the first N time slots comprises:
and according to the time slot sequence corresponding to the caches in each cache group, sequentially performing autocorrelation operation, frequency spectrum shifting operation, FFT operation and peak value judgment operation on the cache data in the caches to obtain the peak value occupation ratio of each cache in each cache group.
3. The method of claim 1, wherein determining the maximum peak-to-peak ratio value corresponding to each buffer group according to the peak-to-peak ratio value corresponding to each time slot in the first N time slots of each buffer group comprises:
and for each cache group, determining the maximum value of the peak ratio values of all the caches of each cache group as the maximum value of the peak ratio corresponding to each cache group, and storing the cache identifier corresponding to the maximum value of the peak ratio corresponding to each cache group.
4. The method according to claim 3, wherein the determining a maximum value to be determined and a cache group corresponding to the maximum value to be determined from the maximum values of peak occupancy corresponding to all cache groups comprises:
determining the maximum value of the peak value occupation ratio maximum values corresponding to all the cache groups as the maximum value to be judged, and storing the cache group identification corresponding to the maximum value to be judged and the cache identification corresponding to the cache group corresponding to the maximum value to be judged.
5. The method according to claim 3, wherein outputting the cache data in the cache corresponding to the maximum value to be decided in the cache group corresponding to the maximum value to be decided, in which the maximum value to be decided is not smaller than a set threshold value, comprises:
comparing the maximum value to be judged with a set threshold value;
when the maximum value to be judged is not smaller than the set threshold value, determining a cache corresponding to the maximum value to be judged based on a corresponding cache identifier in a cache group corresponding to the maximum value to be judged;
and outputting the cache data in the cache corresponding to the maximum value to be judged.
6. An apparatus for detecting a multi-channel signal, the apparatus comprising: a grouping section, a first determining section, an arithmetic section, a second determining section, a third determining section, and an output section; wherein the content of the first and second substances,
the grouping part is configured to group the caches of all channels after correspondingly caching the data of each channel of the multi-channel signal to obtain at least one cache group;
the first determining part is configured to determine N +1 time slots according to the number N of buffers in each buffer group;
the operation part is configured to sequentially perform data processing operation on the cache data in the cache according to a set operation strategy in the time slot sequence corresponding to the cache in each cache group in the first N time slots in the N +1 time slots to obtain a peak value ratio value corresponding to each time slot in the first N time slots of each cache group; wherein, each buffer occupies the time of one time slot to perform data processing operation;
the second determining part is configured to determine a maximum peak ratio value corresponding to each buffer group according to a peak ratio value corresponding to each time slot in the first N time slots of each buffer group in the last time slot of the N +1 time slots; the third determining part is configured to determine a maximum value to be judged and a cache group corresponding to the maximum value to be judged from the maximum values of peak ratio corresponding to all cache groups;
and the output part is configured to output the cache data in the cache corresponding to the maximum value to be judged in the cache group corresponding to the maximum value to be judged, wherein the cache data corresponds to the maximum value to be judged and is not smaller than a set threshold value.
7. An apparatus for detecting a multi-channel signal, the apparatus comprising: the device comprises a cache, a time slot selection module, an operation module, a comparison and judgment result module and a multi-selection 1 output module; wherein the content of the first and second substances,
the number of the caches is consistent with the number of the channels to be detected, and each cache is used for caching corresponding channel data; grouping all the caches to obtain at least one cache group, wherein the number of the caches in each cache group is N;
the number of the time slot selection modules is consistent with that of the cache groups, each time slot selection module corresponds to one cache group, and the time slot selection module is used for determining N +1 time slots and transmitting cache data in the cache to the operation module according to the cache in the corresponding cache group and the time slot sequence;
the number of the operation modules is consistent with that of the cache groups, each operation module corresponds to one cache group, and the operation modules are configured to sequentially perform data processing operation on cache data in the cache according to a set operation strategy in the first N time slots in the N +1 time slots according to the time slot sequence corresponding to the cache in each cache group, so as to obtain a peak value occupation ratio value corresponding to each time slot in the first N time slots of each cache group; wherein, each buffer occupies the time of one time slot to perform data processing operation; and determining the maximum peak ratio value corresponding to each buffer group according to the peak ratio value corresponding to each time slot of each buffer group in the first N time slots in the last time slot of the N +1 time slots;
the comparison judgment result module is configured to determine a maximum value to be judged and a cache group corresponding to the maximum value to be judged from the maximum values of peak ratio corresponding to all the cache groups;
and the multiple-selection-1 output module is configured to output the cache data in the cache group corresponding to the maximum value to be judged, which corresponds to the maximum value to be judged, and the cache data in the cache corresponding to the maximum value to be judged, corresponding to the maximum value to be judged not less than a set threshold value.
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