High-precision amplitude-phase control method and system for multi-channel millimeter wave array power amplifier

Abstract

The invention relates to a high-precision amplitude-phase control method and system for a multi-channel millimeter wave array power amplifier. The method comprises the steps that a first detection signal is sent to a coverage area, a first feedback signal based on the first detection signal is obtained, and a moving track of a tracking target is generated based on the first feedback signal; when the moving tracks of the two tracking targets coincide, a plurality of scanning position points are determined according to the relative positions of the two tracking targets; a second detection signal is sent to the overlapping area of the two tracking targets at the scanning position points, a second feedback signal based on the second detection signal is obtained, the second feedback signal obtained at each scanning position point is separated, and moving tracks of the two tracking targets are obtained. According to the high-precision amplitude-phase control method and system for the multi-channel millimeter wave array power amplifier disclosed by the invention, continuous tracking of two close-range targets is realized in a multi-position synchronous tracking and regional tracking mode.

Description

Technical Field

[0001] The present application relates to the field of data processing technology, and in particular to a high-precision amplitude and phase control method and system for a multi-channel millimeter-wave array power amplifier. Background Art

[0002] A multi-channel millimeter-wave array power amplifier (PAA) is a type of amplifier designed for use in the millimeter-wave frequency band. It consists of multiple channels and can combine power to increase output power. Often used in conjunction with array antennas, each channel contains a power amplifier and other related circuitry to amplify the incoming millimeter-wave signal. This power is then combined and outputted through a specific power combining network. Some PAA also incorporate components such as phase shifters to control the phase of each channel's signal, enabling beamforming and other functions.

[0003] Amplitude-phase control is a technology that precisely adjusts and coordinates the amplitude (power) and phase of radio frequency, microwave, or millimeter wave signals. By changing these two key parameters of the signal, functions such as beamforming, signal synthesis, and target tracking can be achieved.

[0004] In the field of target tracking, accurate tracking of multiple targets can be achieved through high-precision amplitude and phase control. However, due to the limitations of inherent parameters, when the distance between two targets is close and the resolution angle cannot be distinguished, target loss is likely to occur. Summary of the Invention

[0005] The present application provides a high-precision amplitude and phase control method and system for a multi-channel millimeter-wave array power amplifier, which achieves continuous tracking of two close-range targets through multi-position synchronous tracking and regional tracking.

[0006] The above-mentioned purpose of this application is achieved through the following technical solutions: In a first aspect, the present application provides a high-precision amplitude and phase control method for a multi-channel millimeter-wave array power amplifier, comprising: Sending a first detection signal to the coverage area and obtaining a first feedback signal based on the first detection signal and generating a movement trajectory of the tracking target based on the first feedback signal; When the moving trajectories of two tracking targets overlap, a scanning position point is determined according to the relative positions of the two tracking targets, and the number of scanning position points is multiple; sending a second detection signal to an overlapping area of ​​two tracking targets at a scanning position point and obtaining a second feedback signal based on the second detection signal; Separating the second feedback signal obtained at each scanning position point to obtain the movement trajectories of two tracking targets; The overlap of the moving trajectories of the two tracked targets includes predicted overlap and actual overlap; A wide main lobe is assigned to a target that is close to the target, and a narrow main lobe is assigned to a target that is far away.

[0007] In a possible implementation of the first aspect, when the movement trajectories of two tracking targets overlap, the method further includes: Determine the position coordinates of the first tracking target; The occlusion range is divided into two according to the position coordinates, and the first tracking target is located between the two occlusion ranges; Search for the second tracking target within the occlusion range; When searching for the second tracking target within the occlusion range, multiple scanning position points are called, and the multiple scanning position points emit the same second detection signal.

[0008] In a possible implementation of the first aspect, when searching for the second tracking target within the occlusion range, the method further includes: Divide the range of interest according to the position coordinates of the first tracking target, and evenly set the range of interest around the position coordinates of the first tracking target. The shape of the range of interest is a sector or a ring. Acquire feedback signals within a range of interest and generate characteristic values ​​of the feedback signals, the characteristic values ​​including signal strength values ​​and signal distribution values; The fuzzy position range of the second tracking target is determined according to the characteristic value of the interest range.

[0009] In a possible implementation of the first aspect, after determining the fuzzy position range of the second tracking target, scanning is performed within the fuzzy position range of the second tracking target to determine the precise position range of the second tracking target; Determining the fuzzy position range of the second tracking target and determining the precise position range of the second tracking target are performed alternately.

[0010] In a possible implementation of the first aspect, separating the second feedback signal obtained at each scanning position point and obtaining the movement trajectories of two tracking targets includes: Using the first feedback signal to establish a first background parameter attributable to the first tracking target and a second background parameter attributable to the second tracking target; determining a first tracking target using a main lobe signal in the second feedback signal and determining a second tracking target using a side lobe signal in the second feedback signal; Determine the distance of the first tracking target using the first background parameter and the second background parameter; The moving trajectories of the two tracking targets are obtained according to the distance.

[0011] In a possible implementation manner of the first aspect, when the second tracking target cannot be determined through the sidelobe signal, the two tracking targets are merged.

[0012] In a possible implementation manner of the first aspect, using the sidelobe signal in the second feedback signal to determine the second tracking target includes: Transferring the sidelobe signal in the second feedback signal into a three-dimensional coordinate system for decomposition to obtain a decomposed signal group; Use decomposed signal groups to establish analysis reference surfaces; Use other sidelobe signals in the time series to establish a comparison reference surface; The reference surface and the control reference surface are compared and analyzed, and a second tracking target is determined based on the comparison result.

[0013] In a second aspect, the present application provides a high-precision amplitude and phase control device for a multi-channel millimeter-wave array power amplifier, comprising: a target tracking unit, configured to send a first detection signal to the coverage area, obtain a first feedback signal based on the first detection signal, and generate a movement trajectory of the tracked target based on the first feedback signal; a first processing unit, configured to determine a plurality of scanning position points according to relative positions of the two tracking targets when the moving trajectories of the two tracking targets overlap; a second processing unit, configured to send a second detection signal to an overlapping area of ​​two tracking targets at a scanning position point and obtain a second feedback signal based on the second detection signal; a separation processing unit, configured to separate the second feedback signal obtained at each scanning position point to obtain movement trajectories of two tracking targets; The overlap of the moving trajectories of the two tracked targets includes predicted overlap and actual overlap; A wide main lobe is assigned to a target that is close to the target, and a narrow main lobe is assigned to a target that is far away.

[0014] In a third aspect, the present application provides a high-precision amplitude and phase control system for a multi-channel millimeter-wave array power amplifier, the system comprising: one or more memories for storing instructions; and One or more processors, configured to call and execute the instructions from the memory to perform the method as described in the first aspect and any possible implementation of the first aspect.

[0015] In a fourth aspect, the present application provides a computer-readable storage medium, the computer-readable storage medium comprising: The program, when the program is executed by a processor, the method described in the first aspect and any possible implementation of the first aspect is executed.

[0016] In a fifth aspect, the present application provides a computer program product, comprising program instructions. When the program instructions are executed by a computing device, the method described in the first aspect and any possible implementation of the first aspect is executed.

[0017] In a sixth aspect, the present application provides a chip system comprising a processor for implementing the functions involved in the above aspects, such as generating, receiving, sending, or processing the data and / or information involved in the above methods.

[0018] The chip system may be composed of chips, or may include chips and other discrete devices.

[0019] In one possible design, the chip system also includes a memory for storing necessary program instructions and data. The processor and the memory can be decoupled and provided on different devices, connected via wired or wireless means, or the processor and the memory can be coupled on the same device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the principle of direction adjustment on a plane provided by this application.

[0021] Figure 2 This is a schematic diagram of the principle of spatial direction adjustment provided by this application.

[0022] Figure 3 This is a schematic flow chart of the steps of a high-precision amplitude and phase control method for a multi-channel millimeter-wave array power amplifier provided in this application.

[0023] Figure 4 This is a schematic diagram of a scanning position point provided in this application.

[0024] Figure 5 This is a schematic diagram of the division of the occlusion range provided by this application.

[0025] Figure 6 This is a schematic diagram of the division of interest areas provided by this application.

[0026] Figure 7 This is another schematic diagram of dividing the scope of interest provided by this application.

[0027] Figure 8 This is a schematic diagram of processing echo signals within a range of interest provided by the present application. DETAILED DESCRIPTION

[0028] In order to more clearly understand the technical solutions in this application, the relevant technologies are first explained.

[0029] Millimeter wave band: The frequency is approximately between 30GHz-300GHz, and the wavelength range is 1-10 mm.

[0030] Multi-channel millimeter-wave array amplifiers typically utilize power combining technology, combining the output power of multiple low-power solid-state monolithic chips with equal amplitude and phase to achieve a higher power level. Each channel contains a power amplifier and other related circuits to amplify the input millimeter-wave signal. A specific power combining network is then used to combine the power output of each channel. Some multi-channel millimeter-wave array amplifiers also incorporate components such as phase shifters to control the phase of each channel's signal, enabling functions such as beamforming.

[0031] Multi-channel millimeter-wave array power amplifiers typically consist of power amplifier channels, a power combining network, phase shifters (some include them), bias circuits, and control circuits. For example, a W-band antenna-on-chip (AOP) phased array microsystem module contains four channels per chip. The RF input signal in the transmitter chip is distributed to four channels via a power divider. After phase shifting by a phase shifter, it is amplified by a power amplifier. In the receiver chip, a low-noise amplifier amplifies the signal, which is then processed by a phase shifter and finally synthesized by a power combiner. Bias circuits and a serial peripheral interface are also integrated to provide bias voltages and digital control signals.

[0032] by Figure 1 (Plane Orientation Adjustment) and Figure 2 Taking the example of (X-axis adjustment, Y-axis adjustment), by changing the two key parameters of the signal, amplitude (power) and phase, it is possible to continuously track the target without moving it.

[0033] The technical solution in this application is further described in detail below with reference to the accompanying drawings.

[0034] This application discloses a high-precision amplitude and phase control method for a multi-channel millimeter wave array power amplifier. In some examples, see Figure 3 The high-precision amplitude and phase control method of a multi-channel millimeter-wave array power amplifier disclosed in this application includes the following steps: S101, sending a first detection signal to a coverage area, obtaining a first feedback signal based on the first detection signal, and generating a movement trajectory of a tracking target based on the first feedback signal; S102, when the movement trajectories of the two tracking targets overlap, determining a plurality of scanning position points according to the relative positions of the two tracking targets; S103, sending a second detection signal to the overlapping area of ​​the two tracking targets at the scanning position point and obtaining a second feedback signal based on the second detection signal; S104, separating the second feedback signal obtained at each scanning position point to obtain movement trajectories of two tracking targets; The overlap of the moving trajectories of the two tracked targets includes predicted overlap and actual overlap; A wide main lobe is assigned to a target that is close to the target, and a narrow main lobe is assigned to a target that is far away.

[0035] First, it should be noted that the multi-channel millimeter-wave array amplifier in this application is connected directly to the antenna or through a TR module. The millimeter-wave signal generated by the multi-channel millimeter-wave array amplifier is transmitted through the antenna to the space where the tracking target is located. The antenna receives the echo signal and sends it to the processor for processing. In other words, the execution subject in this application is the processor, which controls the assignment and phase of the multi-channel millimeter-wave array amplifier based on the received signal.

[0036] In step S101, a first detection signal is first sent to the coverage area, and a first feedback signal based on the first detection signal is obtained, and a movement trajectory of the tracking target is generated based on the first feedback signal. The first detection signal here refers to a millimeter wave signal, and the first feedback signal refers to an echo signal. The first feedback signal is simplified to be represented by points. These points have position coordinates in space. By connecting the points in the order in which they are generated in time, the movement trajectory of the tracking target can be obtained.

[0037] When the moving trajectories of the two tracking targets overlap, step S102 is executed. In this step, the scanning position point is determined according to the relative positions of the two tracking targets. Figure 4 As shown, there are multiple scanning position points, where one scanning position point includes multiple channels (forming a rectangle or a cross) on a multi-channel millimeter-wave array power amplifier, and each scanning position point is composed of multiple channels on a multi-channel millimeter-wave array power amplifier.

[0038] In some possible implementations, the scanning position points are selected in a ring-shaped distribution or a cross-shaped distribution, and the line connecting the center point of the ring distribution / the worst point of the cross-shaped distribution and one of the tracked targets is as perpendicular to the radar surface as possible.

[0039] There are two ways to overlap the moving trajectories of two tracking targets: predicted overlap and actual overlap. Under normal circumstances, the predicted overlap method is used for processing. When the predicted overlap fails (for example, there is a sudden change in speed or interference), the actual overlap method is used for processing.

[0040] In step S103, a second detection signal is sent to the overlapping area of ​​the two tracking targets at the scanning position point and a second feedback signal based on the second detection signal is obtained. Then, in step S104, the second feedback signal obtained at each scanning position point is separated to obtain the movement trajectories of the two tracking targets.

[0041] Here, it is necessary to assign a wide main lobe to the tracking target at a close distance and a narrow main lobe to the tracking target at a distant distance. The reason is that the wide main lobe can instantly expand the coverage range and cover both the tracking target at a close distance and the tracking target at a distant distance at the same time, while the narrow main lobe can provide higher angular resolution.

[0042] When the distance between the two targets cannot be distinguished temporarily, a wide main lobe is assigned to the detectable tracking target, and a narrow main lobe is used to search for the other tracking target.

[0043] Use the following methods to process: Determine the position coordinates of the first tracking target; The occlusion range is divided into two according to the position coordinates, and the first tracking target is located between the two occlusion ranges; Search for the second tracking target within the occlusion range; When searching for the second tracking target within the occlusion range, multiple scanning position points are called, and the multiple scanning position points emit the same second detection signal.

[0044] At this time, the two tracking targets are called the first tracking target and the second tracking target respectively. First, the position coordinates of the first tracking target are determined, and then the occlusion range is divided according to the position coordinates, such as Figure 5 As shown, the number of occlusion ranges is two, and the first tracking target is located between the two occlusion ranges.

[0045] Or it can be described as dividing two occlusion ranges here, one is the front occlusion range, which is located between the first tracking target and the radar, and the other is the rear occlusion range, where the first tracking target is located between the rear occlusion range and the radar.

[0046] The distance between the edge of the occlusion range and the first tracking target is determined according to the distance between the first tracking target and the second tracking target obtained previously, and is generally 1.1-1.3 times the distance between the first tracking target and the second tracking target obtained previously.

[0047] When searching for the second tracking target within the occlusion range, multiple scanning position points will be called at the same time, and the multiple scanning position points will emit the same second detection signal. The advantage here is that these second detection signals can be detected by multiple scanning position points called at the same time, which can effectively improve the spatial utilization rate and help shorten the search time for the second tracking target.

[0048] It should be understood that the minimum resolvable angle of a single beam is approximately θmin ≈ 1.22λ / D (λ is the signal wavelength, D is the array aperture). The wider the mainlobe (the larger θ), the lower the resolution. When the angle Δθ between two targets is less than θmin, their echoes are simultaneously covered by the mainlobe of a single beam, superimposing them into a "mixed signal," making it impossible to distinguish their respective positions and intensities.

[0049] Therefore, here, a wide main lobe and a narrow main lobe are used to process the first tracking target and the second tracking target respectively, and the occlusion range is used to divide the areas where the first tracking target and the second tracking target are located.

[0050] In some examples, the following approach is used to search for a second target within the occlusion range: S201, dividing the interest range according to the position coordinates of the first tracking target, the interest range is evenly set around the position coordinates of the first tracking target, and the shape of the interest range is sector-shaped or ring-shaped; S202, obtaining feedback signals within a range of interest and generating characteristic values ​​of the feedback signals, the characteristic values ​​including signal strength values ​​and signal distribution values; S203: Determine the fuzzy position range of the second tracking target according to the characteristic value of the interest range.

[0051] In step S201 to step S203, the fuzzy position range of the second tracking target is determined by dividing the interest range, such as Figure 6 and Figure 7 The specific method is to divide the interest range according to the position coordinates of the first tracking target, and the interest range is evenly set around the position coordinates of the first tracking target.

[0052] The shape of the range of interest is fan-shaped or ring-shaped. Its function is to convert the point processing method into the domain processing method through regional processing. The specific method is to obtain the feedback signal within the range of interest and generate the characteristic value of the feedback signal, and then determine the fuzzy position range of the second tracking target based on the characteristic value of the range of interest.

[0053] The characteristic values ​​include signal strength value and signal distribution value.

[0054] In some possible implementations, after determining the fuzzy position range of the second tracking target, scanning is performed within the fuzzy position range of the second tracking target to determine the precise position range of the second tracking target. The advantage of this method is that it can quickly determine the fuzzy position range of the second tracking target, that is, the approximate range, and then perform precise point scanning within this range.

[0055] Furthermore, determining the fuzzy position range of the second tracking target and determining the precise position range of the second tracking target are performed alternately. This is because the distance between the first tracking target and the second tracking target is relatively close at this time. After determining the precise position range of the second tracking target, the first tracking target and the second tracking target may still overlap. Therefore, it is necessary to alternately determine the fuzzy position range of the second tracking target and determine the precise position range of the second tracking target.

[0056] When the distance between the first tracking target and the second tracking target is greater than or equal to the allowed distance, the technical solution in this application stops being implemented and switches to continuous tracking of the first tracking target and the second tracking target respectively.

[0057] The specific method of determining the fuzzy position range of the second tracking target based on the characteristic value of the interest range is as follows: First, the signal strength value is used for processing. The specific method is to compare whether the signal strength values ​​of the range of interest at two time points are consistent. The error required here is generally controlled at around 1%. If it exceeds, it means that there is a second tracking target in this range of interest.

[0058] If the signal strength values ​​are consistent, the signal distribution value is then used for processing, as follows: The echo signal in the range of interest is transferred to the time domain (such as wavelet decomposition) for decomposition processing, and then displayed with frequency as the X coordinate, appearance time and disappearance time as the Y coordinate, and signal amplitude as the Z coordinate, as shown in the following example: Figure 8 As shown, pass Figure 8 It can be deduced that one frequency corresponds to at least one set (two) of points. After all the points are obtained, these points are fitted to obtain a surface.

[0059] Place the surfaces obtained from the echo signals of the two ranges of interest into the same coordinate system, then move the peaks (raised areas) at corresponding positions on the surfaces to make the two surfaces overlap as much as possible, and finally calculate the ratio of the non-overlapping area to the overlapping area of ​​the two surfaces.

[0060] Here the ratio is generally required to be controlled within 0.03-0.05.

[0061] If the ratio does not meet the requirements, it means that there is a second tracking target within the range of interest.

[0062] In some examples, the second feedback signal obtained at each scanning position is separated to obtain the movement trajectories of the two tracking targets as follows: S301, using a first feedback signal to establish a first background parameter belonging to a first tracking target and a second background parameter belonging to a second tracking target; S302, using a mainlobe signal in the second feedback signal to determine a first tracking target and using a sidelobe signal in the second feedback signal to determine a second tracking target; S303, determining the distance of the first tracking target using the first background parameter and the second background parameter; S304: Obtain movement trajectories of the two tracking targets according to the distance.

[0063] Steps S301 to S304 use background parameters (the first background parameter and the second background parameter) to separate the two tracking targets (the first tracking target and the second tracking target). Specifically, the mainlobe signal in the second feedback signal is used to determine the first tracking target, and the sidelobe signal in the second feedback signal is used to determine the second tracking target. The first and second background parameters are then used to determine the distance to the first tracking target.

[0064] Steps S301 to S304 occur before the occlusion range is divided. At this time, there is only one second feedback signal. If the distance between the first tracking target and the second tracking target is close, it is possible that the first tracking target and the second tracking target cannot be distinguished by calculating the distance. In this case, the distance of the first tracking target is determined by the first background parameter and the second background parameter.

[0065] The processing method of using the first background parameter and the second background parameter to determine the distance of the first tracking target is the same as the processing method using the characteristic value, which will not be repeated here.

[0066] After processing using the above method, the distance of the first tracking target at this time can be determined, and the movement trajectory of the first tracking target can be associated.

[0067] In some possible implementations, when the second tracking target cannot be determined through the sidelobe signal, the two tracking targets are merged.

[0068] In some examples, the second tracking target is determined using the sidelobe signal in the second feedback signal as follows: Transferring the sidelobe signal in the second feedback signal into a three-dimensional coordinate system for decomposition to obtain a decomposed signal group; Use decomposed signal groups to establish analysis reference surfaces; Use other sidelobe signals in the time series to establish a comparison reference surface; The reference surface and the control reference surface are compared and analyzed, and a second tracking target is determined based on the comparison result.

[0069] In the above method, the sidelobe signal in the second feedback signal is transferred to a three-dimensional coordinate system for decomposition. The decomposition method refers to the decomposition method at the eigenvalue. Then, the decomposed signal group is used to establish an analysis reference surface. Then, other sidelobe signals in the time series are used to establish a control reference surface. Finally, the analysis reference surface and the control reference surface are compared and the second tracking target is determined based on the comparison results.

[0070] It's important to note that grating lobes are "extra main beams" with similar intensity to the main beam. Their formation is directly related to excessive array element spacing. When the element spacing d of a phased array radar exceeds half the electromagnetic wavelength λ (i.e., d > λ / 2), during beam scanning, in addition to the main beam in the direction of the target, additional strong beams are formed in other directions where the phase difference equals an integer multiple of the wavelength corresponding to the path difference. When the element spacing meets this requirement, grating lobe signals can be eliminated.

[0071] Sidelobe signals refer to signals received or radiated by the side lobes (secondary lobes) of the radiation or receiving system, in addition to the main lobe (maximum radiation / reception direction). The direction of the sidelobe signal is different from that of the main lobe signal. In this application, it is precisely because of the different directions of the sidelobe signals that they can be used to analyze and determine the second tracking target.

[0072] The specific comparison method here is the same as the comparison method in the eigenvalue processing method. It is still determined by comparing and analyzing the reference surface and the reference surface. For example, the ratio of the non-overlapping area to the overlapping area set here is 0.02-0.03. When the actual ratio is greater than the set ratio, it means that there is a second tracking target in the position area pointed by the sidelobe.

[0073] When this method still cannot distinguish the first tracking target from the second tracking target, the method of dividing the occlusion range is used to process it.

[0074] The present application also provides a high-precision amplitude and phase control device for a multi-channel millimeter-wave array power amplifier, comprising: a target tracking unit, configured to send a first detection signal to the coverage area, obtain a first feedback signal based on the first detection signal, and generate a movement trajectory of the tracked target based on the first feedback signal; a first processing unit, configured to determine a plurality of scanning position points according to relative positions of the two tracking targets when the moving trajectories of the two tracking targets overlap; a second processing unit, configured to send a second detection signal to an overlapping area of ​​two tracking targets at a scanning position point and obtain a second feedback signal based on the second detection signal; a separation processing unit, configured to separate the second feedback signal obtained at each scanning position point to obtain movement trajectories of two tracking targets; The overlap of the moving trajectories of the two tracked targets includes predicted overlap and actual overlap; A wide main lobe is assigned to a target that is close to the target, and a narrow main lobe is assigned to a target that is far away.

[0075] Furthermore, when the movement trajectories of two tracking targets overlap, the following steps are also included: Determine the position coordinates of the first tracking target; The occlusion range is divided into two according to the position coordinates, and the first tracking target is located between the two occlusion ranges; Search for the second tracking target within the occlusion range; When searching for the second tracking target within the occlusion range, multiple scanning position points are called, and the multiple scanning position points emit the same second detection signal.

[0076] Furthermore, when searching for the second tracking target within the occlusion range, it also includes: Divide the range of interest according to the position coordinates of the first tracking target, and evenly set the range of interest around the position coordinates of the first tracking target. The shape of the range of interest is a sector or a ring. Acquire feedback signals within a range of interest and generate characteristic values ​​of the feedback signals, the characteristic values ​​including signal strength values ​​and signal distribution values; The fuzzy position range of the second tracking target is determined according to the characteristic value of the interest range.

[0077] Further, after determining the fuzzy position range of the second tracking target, scanning is performed within the fuzzy position range of the second tracking target to determine the precise position range of the second tracking target; Determining the fuzzy position range of the second tracking target and determining the precise position range of the second tracking target are performed alternately.

[0078] Furthermore, separating the second feedback signal obtained at each scanning position point and obtaining the movement trajectories of two tracking targets includes: Using the first feedback signal to establish a first background parameter attributable to the first tracking target and a second background parameter attributable to the second tracking target; determining a first tracking target using a main lobe signal in the second feedback signal and determining a second tracking target using a side lobe signal in the second feedback signal; Determine the distance of the first tracking target using the first background parameter and the second background parameter; The moving trajectories of the two tracking targets are obtained according to the distance.

[0079] Furthermore, when the second tracking target cannot be determined through the sidelobe signal, the two tracking targets are merged.

[0080] Further, using the sidelobe signal in the second feedback signal to determine the second tracking target includes: Transferring the sidelobe signal in the second feedback signal into a three-dimensional coordinate system for decomposition to obtain a decomposed signal group; Use decomposed signal groups to establish analysis reference surfaces; Use other sidelobe signals in the time series to establish a comparison reference surface; The reference surface and the control reference surface are compared and analyzed, and a second tracking target is determined based on the comparison result.

[0081] In one example, the unit in any of the above devices can be one or more integrated circuits configured to implement the above method, such as: one or more application specific integrated circuits (ASICs), or, one or more digital signal processors (DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0082] For another example, when the units in the device can be implemented in the form of a processing element scheduling program, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call programs. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0083] Various objects such as various messages / information / equipment / network elements / systems / devices / actions / operations / processes / concepts that may appear in this application are named. It can be understood that these specific names do not constitute a limitation on the relevant objects. The names assigned may change with factors such as scenarios, contexts or usage habits. The understanding of the technical meaning of the technical terms in this application should be mainly determined from the functions and technical effects embodied / executed in the technical solutions.

[0084] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0085] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0086] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0087] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0088] It should also be understood that in various embodiments of this application, the terms "first," "second," and so on are merely used to indicate that multiple objects are distinct. For example, the terms "first time window" and "second time window" are merely used to indicate different time windows. They should not have any impact on the time windows themselves. The terms "first," "second," and so on should not limit the embodiments of this application in any way.

[0089] It should also be understood that in the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0090] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a computer-readable storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned computer-readable storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0091] A high-precision amplitude and phase control system for a multi-channel millimeter-wave array power amplifier, the system comprising: The present application also provides one or more memories for storing instructions; and One or more processors are used to call and execute the instructions from the memory to perform the method as described above.

[0092] The present application also provides a computer program product, which includes instructions. When the instructions are executed, the terminal device and the network device perform operations of the terminal device and the network device corresponding to the above method.

[0093] The present application also provides a chip system, which includes a processor for implementing the functions involved in the above content, such as generating, receiving, sending, or processing the data and / or information involved in the above method.

[0094] The chip system may be composed of chips, or may include chips and other discrete devices.

[0095] The processor mentioned in any of the above may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for executing a program for controlling the above-mentioned feedback information transmission method.

[0096] In one possible design, the chip system also includes a memory for storing necessary program instructions and data. The processor and the memory can be decoupled and provided on different devices, respectively, and connected via wired or wireless means to support the chip system in implementing the various functions of the above embodiments. Alternatively, the processor and the memory can be coupled on the same device.

[0097] Optionally, the computer instructions are stored in a memory.

[0098] Optionally, the memory is a storage unit within the chip, such as a register, cache, etc. The memory can also be a storage unit within the terminal located outside the chip, such as ROM or other types of static storage devices that can store static information and instructions, RAM, etc.

[0099] It can be understood that the memory in the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories.

[0100] The non-volatile memory may be ROM, programmable ROM (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory.

[0101] Volatile memory can be RAM, which is used as an external cache memory. There are many different types of RAM, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct memory bus RAM.

[0102] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-precision amplitude and phase control method for a multi-channel millimeter-wave array power amplifier, characterized in that: include: Sending a first detection signal to the coverage area and obtaining a first feedback signal based on the first detection signal and generating a movement trajectory of the tracking target based on the first feedback signal; When the moving trajectories of two tracking targets overlap, a scanning position point is determined according to the relative positions of the two tracking targets, and the number of scanning position points is multiple; sending a second detection signal to an overlapping area of ​​two tracking targets at a scanning position point and obtaining a second feedback signal based on the second detection signal; Separating the second feedback signal obtained at each scanning position point to obtain the movement trajectories of two tracking targets; The overlap of the moving trajectories of the two tracked targets includes predicted overlap and actual overlap; A wide main lobe is assigned to a target that is close to the target, and a narrow main lobe is assigned to a target that is far away.

2. The high-precision amplitude and phase control method for a multi-channel millimeter-wave array power amplifier according to claim 1, characterized in that: When the movement trajectories of two tracking targets overlap, it also includes: Determine the position coordinates of the first tracking target; The occlusion range is divided into two according to the position coordinates, and the first tracking target is located between the two occlusion ranges; Search for the second tracking target within the occlusion range; When searching for the second tracking target within the occlusion range, multiple scanning position points are called, and the multiple scanning position points emit the same second detection signal.

3. The high-precision amplitude and phase control method for a multi-channel millimeter-wave array power amplifier according to claim 2, characterized in that: When searching for the second tracking target within the occlusion range, it also includes: Divide the range of interest according to the position coordinates of the first tracking target, and evenly set the range of interest around the position coordinates of the first tracking target. The shape of the range of interest is a sector or a ring. Acquire feedback signals within a range of interest and generate characteristic values ​​of the feedback signals, the characteristic values ​​including signal strength values ​​and signal distribution values; The fuzzy position range of the second tracking target is determined according to the characteristic value of the interest range.

4. The high-precision amplitude and phase control method for a multi-channel millimeter-wave array power amplifier according to claim 3, characterized in that: After determining the fuzzy position range of the second tracking target, scanning is performed within the fuzzy position range of the second tracking target to determine the precise position range of the second tracking target; Determining the fuzzy position range of the second tracking target and determining the precise position range of the second tracking target are performed alternately.

5. The high-precision amplitude and phase control method for a multi-channel millimeter-wave array power amplifier according to claim 1, characterized in that: Separating the second feedback signal obtained at each scanning position point and obtaining the movement trajectories of two tracking targets includes: Using the first feedback signal to establish a first background parameter attributable to the first tracking target and a second background parameter attributable to the second tracking target; determining a first tracking target using a main lobe signal in the second feedback signal and determining a second tracking target using a side lobe signal in the second feedback signal; Determine the distance of the first tracking target using the first background parameter and the second background parameter; The moving trajectories of the two tracking targets are obtained according to the distance.

6. The high-precision amplitude and phase control method for a multi-channel millimeter-wave array power amplifier according to claim 5, characterized in that: When the second tracking target cannot be determined through the sidelobe signal, the two tracking targets are merged.

7. The high-precision amplitude and phase control method for a multi-channel millimeter-wave array power amplifier according to claim 5, characterized in that: Determining the second tracking target using the sidelobe signal in the second feedback signal includes: Transferring the sidelobe signal in the second feedback signal into a three-dimensional coordinate system for decomposition to obtain a decomposed signal group; Use decomposed signal groups to establish analysis reference surfaces; Use other sidelobe signals in the time series to establish a comparison reference surface; The reference surface and the control reference surface are compared and analyzed, and a second tracking target is determined based on the comparison result.

8. A high-precision amplitude and phase control device for a multi-channel millimeter-wave array power amplifier, characterized in that: include: a target tracking unit, configured to send a first detection signal to the coverage area, obtain a first feedback signal based on the first detection signal, and generate a movement trajectory of the tracked target based on the first feedback signal; a first processing unit, configured to determine a plurality of scanning position points according to relative positions of the two tracking targets when the moving trajectories of the two tracking targets overlap; a second processing unit, configured to send a second detection signal to an overlapping area of ​​two tracking targets at a scanning position point and obtain a second feedback signal based on the second detection signal; a separation processing unit, configured to separate the second feedback signal obtained at each scanning position point to obtain movement trajectories of two tracking targets; The overlap of the moving trajectories of the two tracked targets includes predicted overlap and actual overlap; A wide main lobe is assigned to a target that is close to the target, and a narrow main lobe is assigned to a target that is far away.

9. A high-precision amplitude and phase control system for a multi-channel millimeter-wave array power amplifier, characterized in that: The system comprises: one or more memories for storing instructions; and One or more processors, configured to call and execute the instructions from the memory to perform the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium comprises: The program, when executed by a processor, executes the method according to any one of claims 1 to 7.

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