36 results about "Antenna spacing" patented technology

The invention relates to a mobile antenna communication system robust resource optimization method based on angle information uncertainty, and belongs to the field of wireless communication. The method comprises the following steps: constructing a mobile antenna communication system model, and establishing a system energy efficiency maximization resource allocation model based on bounded angle information uncertainty by considering base station transmitting power constraint, user rate constraint, channel uncertainty constraint and mobile antenna spacing constraint; a non-convex original problem is equivalently converted into a convex subproblem about base station beam forming and movable antenna positioning by using transformation replacement, Bukbach, exponential conversion, continuous convex approximation, an S process, a subgradient inequality, singular value decomposition and a block coordinate descent method; and solving a plurality of convex sub-problems by using the CVX to obtain an optimal beam forming matrix and a movable antenna position vector, namely an optimal resource allocation strategy. The energy efficiency of the mobile antenna system can be effectively improved, and compared with a traditional method, the communication outage probability can be effectively reduced.

The utility model relates to the technical field of communication equipment, and discloses a double-antenna spacing adjusting device, which comprises a fixed support, a transfer assembly and two antenna fixing assemblies. The transfer assembly is arranged at one end of the fixing support, one antenna fixing assembly is arranged at the other end of the fixing support, and the other antenna fixing assembly is arranged at the output end of the transfer assembly. According to the utility model, the transfer assembly drives the antennas on the two antenna fixing assemblies to be close to each other or far away from each other, and when the transfer assembly controls the two antenna fixing assemblies to be close to each other, the antennas can be adjusted to the closer positions at the same time, so that the occupied space is smaller; the transfer assembly adjusts the two antenna fixing assemblies to be far away from each other, so that the distance between the two antenna fixing assemblies is adjusted to be larger than 1 m, the requirement that the lifting rod carries the two antennas for simultaneous communication is met, and mutual communication interference of the two antennas installed on the antenna fixing assemblies is avoided.

The invention relates to the technical field of wireless communication, in particular to an antenna radiation and mutual coupling collaborative optimization system based on a time domain hybrid fast algorithm. The antenna radiation and mutual coupling collaborative optimization system based on the time domain hybrid fast algorithm is applied to an unmanned aerial vehicle group communication system and comprises an antenna array unit, a data acquisition unit, a time domain hybrid fast algorithm unit, a mutual coupling calculation unit, an optimization control unit and a communication coordination unit. According to the invention, the three-dimensional geographic coordinates, attitude angle data and signal intensity of the unmanned aerial vehicle group are acquired in real time through the data acquisition unit, and real-time mutual coupling coefficient analysis of the mutual coupling calculation unit is combined, so that the system can dynamically sense the formation form change and trigger the optimization instruction, and the optimization control unit performs comparison through a preset threshold value. The node with the maximum deviation degree is adjusted preferentially, it is ensured that the antenna spacing and the radiation pattern are always adaptive to the dynamic environment, the mutual coupling effect is reduced, and the communication stability is remarkably improved.

Provided are a method by which a first device performs wireless communication, and a device supporting same. The method may comprise the steps of: acquiring configuration information for sensing from a base station or a sensing management function (SMF); and transmitting or receiving a sensing signal on the basis of at least one antenna. For example, the at least one antenna may be on the basis of an antenna interval included in the configuration information.

Disclosed is a blood flow measurement device capable of emitting microwaves at a target blood vessel of a human body, measuring a blood flow in real time by using the microwaves reflected from the blood vessel, and adjusting, by means of a simple method, the position of the target blood vessel, which is the target of the microwaves. The disclosed blood flow measurement device comprises a probe having: a bar-shaped probe body extending in the longitudinal direction; and an antenna unit formed at one end of the probe body. The antenna unit includes: a transmission antenna for emitting microwaves at the target blood vessel in the human body; a reception antenna for receiving the microwaves transmitted from the transmission antenna and reflected by the target blood vessel; and an antenna spacing adjusting unit, which adjusts spacing between the transmission antenna and the reception antenna so as to adjust the measurement position of the blood flow to the depth of the target blood vessel for which the blood flow is to be measured.

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a network node may receive signals associated with a spatially multiplexed communication having a first number of layers per polarization via a set of receive antenna groups having a first antenna pitch independent of a distance between the network node and a transmitting device. The network node may forward signals associated with spatial multiplexing communications having a second number of layers per polarization via a set of transmit antenna groups having a second antenna pitch independent of the distance between the repeater and the receiving device. Numerous other aspects are described.

The application discloses a kind of design method and system of array antenna, it is related to computer-aided design technical field.The design method of array antenna, by obtaining test angle, the number of antenna units in array antenna, the initial current intensity value of each antenna unit, initial phase value, the antenna spacing value of each group adjacent antenna unit, antenna operating frequency value, and carry out array analysis and gain analysis, whether the gain is in the preset interval is judged, if not satisfied, adjust current intensity and phase value, repeat analysis and judgment, until the gain of all test angles meets the preset interval requirement, the initial data of the application is analyzed and gain analysis, combined with adjustment compensation model, the current intensity and phase distribution of antenna unit are gradually optimized, ensure that gain meets the preset interval requirement in all test angles, so as to not only improve the consistency of multi-angle gain, but also effectively reduce the calculation complexity of optimization process, significantly improve design efficiency.

The invention provides a full-duplex antenna system and an application method thereof, electronic equipment and a computer program, and relates to the technical field of communication, a transmitting antenna is designed into a multi-order two-dimensional array and is provided with a reflecting surface, and meanwhile, beam direction adjustment is realized in combination with an adjustable module; a multi-input multi-output antenna composed of a plurality of sub-antennas is adopted in cooperation with a receiving antenna, the distance between the adjacent sub-antennas is smaller than the first preset proportion of the working wavelength of the target terminal, and a directional diagram null trapping area is aligned with a transmitting antenna, so that the self-interference elimination capability is improved, and the spatial domain self-interference suppression effect is enhanced; the communication flexibility is improved by rotating the transmitting antenna to accurately align to the base station, meanwhile, the receiving reliability is guaranteed by utilizing the characteristics of the multiple-input-multiple-output antenna, and effective shielding is formed when the reflecting surface rotates, so that the problem of how to improve the self-interference elimination efficiency of the terminal while considering the reliability and flexibility of terminal communication can be solved, and the user experience is improved. The effect of improving the communication quality is achieved.

A wireless communication method is disclosed. The method includes transmitting a sensing signal in a sensing mode using a first set of antennas; receiving echo signals in a sensing mode using a second set of antennas; and performing wireless communication in a communication mode using the first set of antennas and the second set of antennas; wherein the first set of antennas and the second set of antennas are different in at least one of an antenna pitch, a radio frequency, RF, a link implementation, an antenna type, or an antenna arrangement.

The invention discloses a downlink communication rate optimization method and system based on a clip antenna array, and a storage medium, a base station provides services for a single antenna user randomly distributed in a square with a side length D through a plurality of clip antennas, and the method comprises the steps: building a rate model based on a finite code length theory, constructing a clip antenna position optimization problem, an objective function with the maximum user rate as the optimization objective is obtained, the optimization variable is the abscissa of the position of the clip antenna, and the optimization constraints are the minimum antenna spacing constraint and the QoS constraint; equivalently converting the QoS constraint into a signal-to-noise ratio constraint, and carrying out equivalent transformation on the target function; deriving a closed-form solution of the antenna position; and adjusting the closed-form solution of the antenna position according to the phase constraint to obtain the optimal solution of the antenna position optimization problem. Complex radio frequency link configuration in a traditional array is avoided, and the reachable rate under the limited code length is effectively improved under the condition that the service quality and the antenna spacing constraint are guaranteed.

Multimodal radar antenna device (100, 200, 300), comprising: a transmitting antenna section (120, 220, 320) comprising a first plurality of transmitting antennas (101) configured to transmit a steerable mode signal, a second plurality of transmitting antennas (104) configured to transmit an imaging mode signal, and a third plurality of transmitting antennas (103) configured to transmit the imaging mode signal and the steerable mode signal; and a receiving antenna section (140, 240, 340) comprising a plurality of receiving antennas (102), wherein the second plurality of transmitting antennas (104) is arranged between the first plurality of transmitting antennas (101), wherein the second plurality of transmitting antennas (104) is arranged between the third plurality of transmitting antennas (103), wherein the first plurality of transmitting antennas (101) comprises a first set of steerable mode signal transmission antennas (121) with a spacing of 1.5 λ between antennas of the first set of steerable mode signal transmission antennas (121) and a second set of steerable mode signal transmission antennas (122) with a spacing of 1.5 λ between antennas of the second set of steerable mode signal transmission antennas (122), wherein the first sentence and the second sentence are arranged horizontally along an axis, and where λ is a wavelength of a signal that is sent or received by an antenna.

The invention discloses a symmetric translation co-prime sparse array design method suitable for a mixed field, and the method comprises the steps: firstly selecting U + 1 antennas, constructing a subarray 1 through sparse uniform linear arrangement at an antenna spacing V, then selecting V-1 antennas, constructing a subarray 2 through right shift after sparse uniform linear arrangement at an antenna spacing U, and finally folding the subarray 1 and the subarray 2, according to the method, the sub-array 3 and the sub-array 4 are constructed, the symmetric translation co-prime array is constructed by integrating the four sub-arrays, and the array can be higher in mutual coupling resistance and higher in parameter estimation precision under the condition that the degree of freedom of the array is equivalent to that of an existing sparse array.

A method for determining an angle of arrival at a communication device is described. The method comprises performing a message exchange between the communication device and a further communication device. The message exchange comprises receiving at least one first message associated with a first frequency at the communication device by means of a first antenna and a second antenna and receiving at least one second message associated with a second frequency at the communication device by means of the first antenna and the second antenna. The method further comprises determining the angle of arrival defined by an orientation of the communication device and a transmission direction of the message exchange, wherein the angle of arrival is determined based on the received first message and the received second message. Furthermore, a corresponding communication device is described.

The invention discloses a method for optimizing a clamping antenna system assisted multi-backscattering device symbiotic wireless network, which comprises the following steps of: realizing fair scheduling and resource allocation of a plurality of backscattering devices by introducing a time division multiple access mechanism and two configurable transmission protocols (Pinch Multiplexing and Pinch Switch); based on a penalty function method and a successive convex approximation technology, a non-convex optimization problem is converted into a solvable convex problem, and the sum rate of a backscattering system is maximized on the premise that the minimum rate of a mobile user and the antenna spacing constraint are met through joint optimization of the clamping antenna position and the beam forming vector through an analytical solution. According to the method, the transmission reliability, the calculation efficiency and the real-time performance of the system are effectively improved, meanwhile, the limitation that large-scale fading cannot be compensated by a traditional relay technology is overcome, and an efficient and flexible solution is provided for practical deployment of a symbiotic wireless network.

The application discloses a phase shift and time delay calculation method and system for a near-field sensing and communication integrated system, and the method comprises the following steps: calculating the phase shift of each phase shifter and the initial time delay range of each time delay module according to a preset system sensing coverage, an antenna spacing, a system minimum frequency, a system maximum frequency and a system bandwidth; wherein the preset system sensing coverage comprises a preset sensing angle domain coverage and a preset sensing distance domain coverage; calculating the final time delay range of each time delay module according to a preset system sensing resolution, the preset system sensing coverage, the antenna spacing, the system minimum frequency, the system maximum frequency and the system bandwidth; wherein the preset system sensing resolution comprises a preset sensing angle domain resolution and a preset sensing distance domain resolution; and obtaining the time delay of each time delay module under the maximum communication user reachable rate within the final time delay range.

A MIMO radar system has a transmitting array with a plurality of transmitting antennas arranged at a distance from each other in an angle resolving direction, a receiving array with a plurality of receiving antennas arranged at a distance from each other in an angle resolving direction, an antenna spacing of one of the transmitting and receiving arrays being above the Nyquist limit for a single valued angle measurement, however an antenna spacing of the combination of the transmitting and receiving arrays being below the Nyquist limit, a control and analysis processing device configured for transmitting a transmitting signal by the transmitting array in each of a plurality of measurement periods implemented repeatedly according to a periodic multiplexing scheme, converting a signal received in a measurement period into a detection space of at least two dimensions, testing a plurality of hypotheses of a plurality valuedness against an estimate, selecting a hypothesis of the plurality valuedness with a highest quality measure for a single valued Doppler measurement, performing an independent angle estimation based on the transmitting and receiving array, merging results of the independent angle estimations into a single valued angle measurement.

A radar calibration system is set on a vehicle and includes a sensing unit and a housing. The sensing unit includes a receiving antenna array, the receiving antenna array includes at least four receiving antennas, the receiving antennas are arranged on an antenna plane and have a receiving antenna center, the distance between the receiving antenna center and the ground is greater than 40 cm, and the distance between any two adjacent receiving antennas is a receiving antenna interval, the ratio of the receiving antenna interval is 1:3:2 in sequence. The housing includes a bottom surface attached to the outer surface of the vehicle, the sensing unit is arranged in the housing, the antenna plane and the antenna plane angle of the outer surface of the vehicle are between 0 degrees and 90 degrees, and the vertical distance between the receiving antenna center and the bottom surface is less than or equal to 2 cm. Therefore, it is beneficial to reduce the sensing error caused by the virtual mirror target.

Methods, systems, and devices for wireless communications are described. A network entity may transmit channel state information (CSI) reference signals (CSI-RSs) to a user equipment (UE). A user equipment (UE) may perform measurements on channel state information (CSI) reference signals (CSI-RSs) and may generate a CSI report based on the measurements and an indicated codebook. The CSIRSs may be transmitted via an antenna array such as a uniform linear array (ULA). Antenna spacing at the ULA may be selected as λ / 2, where λ refers to the wavelength. A precoding codebook for a ULA or a two-dimensional cross polarized array may ensure unitary precoding matrices for an antenna spacing of λ / 2. The codebooks may be generated such that for an antenna spacing of λ / 2 for any initial beam angle, the additional beam angles may be orthogonal with the initial beam angle (e.g., the precoding matrices may be unitary).

The utility model discloses a Ka frequency range antenna, belongs to the technical field of communication, and comprises 256 unit horn array antennas and an antenna carrier plate, and belongs to the field of antenna design, the unit horn array antennas are uniformly distributed on the antenna carrier plate, the spacing of the unit horn array antennas is 18.5 mm, the size of the antenna carrier plate is 300mm * 300mm * 40mm, and the antenna carrier plate is a rectangular plate. According to the utility model, the technical problems in the prior art that the maximum gain of the antenna is too small and the circular polarization axial ratio is too large are solved.

The application relates to a design method of a phase interferometer based on multiple linear polarization antennas, and belongs to the technical field of array signal processing. The application solves the problems of polarization mismatch, low robustness and low precision of polarization parameter measurement of an existing polarization interferometer. The design criteria of the linear polarization antenna spacing of the application are the direction finding precision and the phase difference measurement error. The design criteria of the polarization pointing angle of the linear polarization antenna are the super volume of the polarization parameter matrix of the receiving linear polarization antenna. Since the polarization pointing angle of the receiving linear polarization antenna of the application is varied, the polarization of the incident signal and the receiving linear polarization antenna are not all orthogonal, the polarization mismatch phenomenon is avoided, the problem that the DOA parameter cannot be estimated in an extreme case is solved, the robustness and precision of the polarization parameter measurement are improved, and more superior unblurring performance and DOA estimation precision can be obtained in a wide frequency band range. The method of the application can be applied to the design of a phase interferometer.

This invention discloses a dual-antenna GNSS-IR water level monitoring method, apparatus, device, and storage medium, relating to the field of water level measurement technology. The method involves placing a first antenna below a second antenna and using a dual-antenna receiver to receive the signal-to-noise ratio (SNR) sequences of both the first and second antennas. Based on the antenna spacing, the antenna interference phase difference is calculated. Based on the antenna interference phase difference, the interference phase of the target antenna is calculated. Based on the oscillation frequency and wavelength of the SNR sequences, the interference phase, the GNSS satellite elevation angle, and the absolute antenna altitude, the absolute altitude of the target water surface is calculated. Compared to existing technologies, this invention solves the problem of low sampling rate in traditional single-antenna GNSS-IR altimeter measurement. Furthermore, compared to dual-antenna GNSS-IR, this invention offers more stable signal tracking and lower hardware costs.

The invention provides a receiving and transmitting antenna channel measurement method, system and device and a medium, and the method comprises the steps: setting a conductor and a receiving and transmitting antenna to be in non-contact connection, and fixing the conductor and the antenna through an adjustable device; the antenna spacing is fixed, the conductor spacing is adjusted through the adjustable device, the receiving device is moved to different test positions, and test data under various working conditions are recorded and obtained; based on test data, in combination with signal transmission characteristics constrained by a free space and a conductor interface, a multi-conductor path loss model is constructed by adopting ridge regression and a least square method, and fluctuation characteristics in a signal transmission process are obtained through the multi-conductor path loss model. Through non-contact configuration of multiple conductors and the receiving and transmitting antenna, multi-working-condition data acquisition and construction of the multi-conductor path loss model, the high-frequency-band signal transmission path loss is effectively reduced, the channel characteristic prediction precision is improved, and the method is adaptive to multiple industrial scenes and has no significant system deviation.

The embodiment of the application discloses an antenna array and a radar, and belongs to the antenna design field.The antenna array comprises a transmitting antenna array and a receiving antenna array, the transmitting antenna array comprises parallel first and second arrays, the receiving antenna array comprises parallel third and fourth arrays, the first and second arrays are arranged along a first direction, a first antenna of the first array and a second antenna of the second array are aligned in position in a second direction, and the minimum distance between the first and second arrays in the second direction is greater than the sum of the sizes of the first and second arrays in the second direction, the third and fourth arrays are arranged along a third direction, a third antenna of the third array and a fourth antenna of the fourth array are aligned in position in a fourth direction, and the minimum distance between the third and fourth arrays in the fourth direction is greater than the sum of the sizes of the third and fourth arrays in the fourth direction.The embodiment of the application solves the problem of angle ambiguity when the distance between antennas is greater than half a wavelength.

The invention relates to a communication coverage enhanced low-altitude aircraft path planning method, which belongs to the technical field of communication, and comprises the following steps: modeling a communication system consisting of a low-altitude aircraft equipped with a movable antenna and at least one base station to obtain a joint state model; establishing a discretization optimization problem which takes a signal to interference and noise ratio, the maximum speed of the aircraft, the moving range and speed of antennas, the minimum antenna spacing and base station association as constraints and takes minimization of task completion time of the aircraft from a starting point to a terminal point as an optimization target; a selective consistent cost search algorithm is adopted to iteratively expand nodes on the discrete grids, beam forming, antenna positions and base station association are jointly optimized during each time of expansion, nodes meeting the signal to interference and noise ratio and short potential task time are reserved, and an optimal path is output to an end point; the aircraft flies according to the optimal path and adjusts the antenna position and beam forming in real time, and the link quality is kept. According to the invention, stable communication connection under the cellular network is guaranteed, and the trajectory planning efficiency is obviously improved.

The utility model relates to the technical field of antennas, in particular to a 0.02 GHz-6GHz broadband signal emission combined antenna device, which comprises an emission installation panel and nine omnidirectional antennas installed on the emission installation panel, the arrangement sequence and the spacing of the antennas are as follows: an antenna 4, an antenna 6, an antenna 2, an antenna 1, an antenna 3, an antenna 5, an antenna 7, an antenna 9 and an antenna 8 in sequence from left to right, the spacing between the antenna 4 and the antenna 6 is 5cm, and the spacing between the antenna 4 and the antenna 6 is 5cm. The distance between the antenna 6 and the antenna 2 is 10cm, the distance between the antenna 2 and the antenna 1 is 15cm, the distance between the antenna 1 and the antenna 3 is 15cm, the distance between the antenna 3 and the antenna 5 is 10cm, the distance between the antenna 5 and the antenna 7 is 5cm, the distance between the antenna 7 and the antenna 9 is 5cm, the distance between the antenna 9 and the antenna 8 is 5cm, the distance between the antennas with similar frequencies is more than 15cm, near-field electromagnetic coupling is weakened, the positions of high-frequency and low-frequency antennas are staggered, and octave interference is avoided. After optimization, the standing-wave ratio of the antenna array is reduced, and the mutual coupling strength is weakened.

To improve angle measurement accuracy or resolution in a radar apparatus.SOLUTION: In a radar apparatus, an r1-th antenna and an r2-th antenna in a first antenna group are arranged adjacent to each other in a third direction different from both a first direction and a second direction, a t1-th antenna and a t2-th antenna in a second antenna group are arranged adjacent to each other in the third direction, an r3-th antenna in the first antenna group is arranged at a position shifted to a position wider than a prescribed value based on a wavelength of a transmission signal toward each of the first direction and the second direction from the third direction, an absolute value of a difference between an interval between the r1-th antenna and the r2-th antenna and an interval between the t1-th antenna and the t2-th antenna is a prescribed value, or the absolute value of the difference between the interval between the r1-th antenna and the r2-th antenna and the interval between the t1-th antenna and the t2-th antenna is an integer multiple of the prescribed value that is two or more, and either one of the interval between the r1-th antenna and the r2-th antenna and the interval between the t1-th antenna and the t2-th antenna is the prescribed value.SELECTED DRAWING: Figure 7

The embodiment of the invention provides an antenna array signal sending method and device and electronic equipment, and belongs to the technical field of antenna communication. The method is applied to an antenna array, the antenna array comprises a plurality of antenna units, and the method comprises the following steps: determining a plurality of eavesdropping ends and a target receiving end; constructing a communication model based on the antenna array, the plurality of eavesdropping ends and the target receiving end, and determining the security rate of communication between the antenna array and the target receiving end; constructing a target optimization problem by maximizing the safety rate; the method comprises the following steps: adjusting the antenna carrier frequency of an antenna array, applying a frequency offset vector to the antenna carrier frequency of each antenna unit to simulate and adjust the antenna spacing between the antenna units, and processing a target optimization problem to obtain target optimization information; and adjusting a signal transmission operation of the antenna array based on the target optimization information. According to the embodiment of the invention, the communication mode of the antenna array can be adjusted to improve the safety performance of a physical layer.

The application relates to a communication coverage enhanced low-altitude aircraft path planning method, belonging to the technical field of communication, and comprising the following steps: modeling a communication system composed of a low-altitude aircraft equipped with a movable antenna and at least one base station to obtain a joint state model; establishing a discretized optimization problem with a signal-to-interference-and-noise ratio, a maximum speed of the aircraft, a moving range and speed of the antenna, a minimum antenna spacing and base station association as constraints, and minimizing a task completion time of the aircraft from a starting point to an ending point as an optimization target; adopting a selective uniform cost search algorithm to iteratively expand nodes on a discrete grid, optimizing beamforming, antenna position and base station association each time of expansion, reserving nodes meeting the signal-to-interference-and-noise ratio and having a relatively small potential task time, and outputting an optimal path to the ending point; and flying the aircraft according to the optimal path and adjusting the antenna position and the beamforming in real time to maintain link quality. The application guarantees stable communication connection under a cellular network and significantly improves trajectory planning efficiency.

The invention discloses a hybrid MIMO detection method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a channel matrix, a matrix dimension, a truncation factor and a receiving end signal, the matrix dimension is used for setting the maximum number of iterations, carrying out the singular value decomposition of the channel matrix, and obtaining the maximum number of iterations; a singular value smaller than a preset condition and a corresponding feature vector are abandoned according to a truncation factor to obtain a reconstructed channel matrix, pseudo-inverse of the reconstructed channel matrix is solved, an estimated value of a current path signal is obtained through zero-forcing detection, current path interference is eliminated from a receiving end signal after quantitative judgment of the estimated value, and the receiving end signal is updated. The method comprises the following steps of: setting a corresponding column in a channel matrix to zero, entering the next path of signal detection, circulating the steps until the number of iterations reaches the maximum number of iterations, and outputting a detection result, so that the influence of noise on signals is weakened and the problem of signal aliasing is solved under the conditions that a transmission link with fewer scattering and reflecting components is provided and the antenna spacing is very close.

The present application relates to the technical field of wireless communication, in particular to an antenna radiation and mutual coupling collaborative optimization system based on a time-domain hybrid fast algorithm. The antenna radiation and mutual coupling collaborative optimization system based on the time-domain hybrid fast algorithm is applied to a UAV group communication system, and comprises an antenna array unit, a data acquisition unit, a time-domain hybrid fast algorithm unit, a mutual coupling calculation unit, an optimization control unit and a communication coordination unit. In the present application, the three-dimensional geographic coordinates, attitude angle data and signal strength of the UAV group are acquired in real time by the data acquisition unit, and the real-time mutual coupling coefficient analysis of the mutual coupling calculation unit is combined, so that the system can dynamically perceive the formation mode change and trigger the optimization instruction, and the optimization control unit compares the preset threshold value, preferentially adjusts the node with the largest deviation degree, ensures that the antenna spacing and the radiation pattern are always adapted to the dynamic environment, reduces the mutual coupling effect, and significantly improves the communication stability.