CN103650370B - A kind of method and device of beam shaping - Google Patents

Abstract

The embodiment of the invention discloses the method and device of a kind of beam shaping, relate to the communications field, reduce the interference that wave beam faces between district.The specific scheme is that the M road signal to receiving carries out figuration process, obtain N road signal, the N road signal obtained is formed after antenna array radiation the first wave beam and the second wave beam, and wherein the first wave beam is positioned at the normal direction of aerial array, and the second wave beam is positioned at the normal both sides of aerial array.

Description

A kind of method and device of beam shaping

Technical field

The present invention relates to the communications field, particularly relate to the method and device of a kind of beam shaping.

Background technology

Along with the development of mobile communication, the capacity of communication system is proposed the highest by user Requirement.The effective ways promoting power system capacity are to use multibeam technique, a kind of typical many ripples Bundle design is as it is shown in figure 1, formed respectively in normal (i.e. the direction of 0 ° in the figure) both sides of antenna First wave beam and the second wave beam (or referred to as the first polarization wave beam and the second polarization wave beam). Realizing the normal method of this multi-beam is by beamforming circuitry (or referred to as beam shaping net Network) it is connected with aerial array, typical beamforming circuitry is by Butler (Butler) square Battle array realizes.

The equivalent column pitch of traditional array antenna at 0.6 λ (wavelength) below, such as, 0.5 λ. And along with the increase of application scenarios, the demand of broad-band antenna is gradually increased, aerial array etc. Effect column pitch becomes big the most therewith.When equivalence column pitch increases to 0.65 more than λ, existing ripple Bundle design is introduced into certain adjacent area interference.

Such as, refer to Fig. 2, its for existing beam designing scheme be applied to equivalence column pitch be During the array antenna of 0.65～0.75 λ, obtained wave beam schematic diagram.

As in figure 2 it is shown, although the isolation of the wave beam subregion of this form is preferable, but The sector boundary regions beam gain of +/-60 ° occurs overlapping, and the convergence of graing lobe is the best, adjacent area Disturb bigger.

Summary of the invention

Embodiments provide the method and device of a kind of beam shaping, it is possible to reduce adjacent area Interference.

For reaching above-mentioned purpose, the embodiment of the present invention the technical scheme is that

First aspect, embodiments of the invention provide a kind of method of beam shaping, including:

Receiving M road signal, wherein M is positive integer；

Described M road signal being carried out figuration process, obtains N road signal, wherein, N is for being more than The positive integer of M；

Described N road signal is formed the first wave beam and the second wave beam after antenna array radiation, its In, described first wave beam is positioned at the normal direction of described aerial array, and described second wave beam is positioned at The normal both sides of described aerial array.

In conjunction with first aspect, in the implementation that the first is possible,

Described M is 4, and described N is 8.

In conjunction with the first possible implementation of first aspect, in the realization side that the second is possible In formula, described described M road signal is carried out figuration process, including:

Exploitation right value matrix carries out figuration process, wherein said weight matrix to described M road signal For:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, B is weight matrix, and α, β are range coefficient,

In conjunction with first aspect, the first possible implementation of first aspect or first aspect The implementation that the second is possible, in the implementation that the third is possible,

The equivalent column pitch of described array antenna is 0.65 λ～0.75 λ, and wherein, λ is wavelength.

Second aspect, embodiments of the invention provide a kind of beam forming device, including:

Interface unit, is used for receiving M road signal, and wherein M is positive integer；

Figuration unit, for described M road signal is carried out figuration process, obtains N road signal, Wherein, N is the positive integer more than M；

Aerial array, forms first wave bundle and the second ripple for described N road signal carries out radiation Bundle, wherein, described first wave beam is positioned at the normal direction of described aerial array, described second ripple Bundle is positioned at the normal both sides of described aerial array.

In conjunction with second aspect, in the implementation that the first is possible,

Described M is 4, and described N is 8.

In conjunction with the first possible implementation of second aspect, in the realization side that the second is possible In formula,

Described figuration unit, is further used for exploitation right value matrix and composes described M road signal Shape processes, and wherein said weight matrix is:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, B is weight matrix, and α, β are range coefficient,

In conjunction with second aspect, the first possible implementation of second aspect or second aspect The implementation that the second is possible, in the implementation that the third is possible,

The equivalent column pitch of described array antenna is 0.65 λ～0.75 λ, and wherein, λ is wavelength.

The third aspect, embodiments of the invention provide a kind of beam forming device, including:

Signal source, is used for providing M road signal, and wherein M is positive integer；

Figuration circuit, is connected to described signal source, for carrying out described M road signal at figuration Reason, obtains N road signal, and wherein, N is the positive integer more than M；

Aerial array, is connected to described figuration circuit, for being radiated by described N road signal Forming the first wave beam and the second wave beam, wherein, described first wave beam is positioned at described aerial array Normal direction, described second wave beam is positioned at the normal both sides of described aerial array.

In conjunction with the third aspect, in the implementation that the first is possible, described figuration circuit includes:

Weights circuit, is connected to described signal source, for the described M providing described signal source Road signal is weighted process and obtains initial N road signal, wherein, the weights of described weights circuit Matrix is butler matrix；

Phase-shift circuit, is connected to described weights circuit and described aerial array, for described power Initial N road signal after value circuit weighting processes is carried out at phase shift with the equal difference phase place of pi/2 phase difference Reason, is provided to the described N road signal of described aerial array.

In conjunction with the first possible implementation of the third aspect, in the realization side that the second is possible In formula,

Described M is 4, and described N is 8.

In conjunction with the implementation that the second of the third aspect is possible, in the realization side that the third is possible In formula,

Described butler matrix Butler Matrix is:

$ButlerMatrix=\left[\begin{array}{c}\mathrm{\α},\mathrm{\β}j,-\mathrm{\β},-\mathrm{\α}j\\ \mathrm{\α},-\mathrm{\β}j,-\mathrm{\β},\mathrm{\α}j\end{array}\right];$

Further, the phase shift matrix of described phase-shift circuit is:

$PS=\left[\begin{array}{cccc}1& 0& 0& 0\\ 0& e^{i\mathrm{\θ}}& 0& 0\\ 0& 0& e^{i2\mathrm{\θ}}& 0\\ 0& 0& 0& e^{i3\mathrm{\θ}}\end{array}\right];$

Wherein, PS is phase shift matrix, and α, β are range coefficient, andθ=pi/2 Or-pi/2.

In conjunction with the third aspect, in the 4th kind of possible implementation,

Described M is 4, and described N is 8.

In conjunction with the 4th kind of possible implementation of the third aspect, the 5th kind of possible realization side In formula,

Described figuration circuit is weights circuit, and the weight matrix of described weights circuit is:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, B is weight matrix, and α, β are range coefficient,

In conjunction with the first of the third aspect or the third aspect in the 5th kind of possible implementation Any one possible implementation, in the 6th kind of possible implementation,

The equivalent column pitch of described array antenna is 0.65 λ～0.75 λ, and wherein, λ is wavelength.

Fourth aspect, embodiments of the invention provide a kind of beam forming device, including:

Signal source, is used for providing M road signal, and wherein, M is positive integer；

Processor, is connected to described signal source, for the described M road providing described signal source Signal carries out figuration process so that the N road signal obtained after process is after antenna array radiation Forming the first wave beam and the second wave beam, wherein, N is the positive integer more than M, and described first Wave beam is positioned at the normal direction of described aerial array, and described second wave beam is positioned at described aerial array Normal both sides.

In conjunction with fourth aspect, in the implementation that the first is possible,

Described M is 4, and described N is 8.

In conjunction with the first possible implementation of fourth aspect, in the realization side that the second is possible In formula,

Described processor, is further used for exploitation right value matrix and described M road signal is carried out figuration Processing, wherein said weight matrix is:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, B is weight matrix, and α, β are range coefficient,

In conjunction with fourth aspect, the first possible implementation of fourth aspect or fourth aspect The implementation that the second is possible, in the implementation that the third is possible,

The equivalent column pitch of described array antenna is 0.65 λ～0.75 λ, and wherein, λ is wavelength.

5th aspect, embodiments of the invention provide a kind of computer program, including calculating Machine computer-readable recording medium,

Described computer-readable medium includes: batch processing code, for carrying out M road signal Figuration processes so that the N road signal obtained after process forms first wave after antenna array radiation Bundle and the second wave beam, wherein, M is positive integer, and N is the positive integer more than M, and described the One wave beam is positioned at the normal direction of described aerial array, and described second wave beam is positioned at described antenna array The normal both sides of row.

A kind of multibeam technique that embodiments of the invention provide, by believing the M road received Number carry out figuration process so that figuration processes the N road signal obtained the most respectively at antenna Normal and normal both sides form the first wave beam and the second wave beam, this new beam designing side Case, is particularly suited for broad-band antenna, decreases the overlapping region of beam gain, solves Lin Qu Disturb bigger problem.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention and technical scheme of the prior art, below The accompanying drawing used required in embodiment and description of the prior art will be briefly described.

A kind of wave beam schematic diagram that Fig. 1 provides for prior art；

The another kind of wave beam schematic diagram that Fig. 2 provides for prior art；

A kind of wave beam schematic diagram that Fig. 3 provides for embodiments of the invention；

The schematic flow sheet of a kind of beam-forming method that Fig. 4 provides for embodiments of the invention；

A kind of beam forming device structural representation that Fig. 5 provides for embodiments of the invention；

A kind of beam forming device structural representation that Fig. 6 provides for another embodiment of the present invention；

A kind of beam forming device structural representation that Fig. 7 provides for another embodiment of the present invention；

A kind of beam forming device structural representation that Fig. 8 provides for one more embodiment of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present invention Case is clearly and completely described, it is clear that described embodiment is only the present invention one Divide embodiment rather than whole embodiments.

The present invention is difficult to meet the need that the beamwidth of antenna increases in view of transmission multi-beam design Ask, be thus provided that a kind of multi-beam design, respectively in normal and the normal both sides of antenna Forming the first wave beam and the second wave beam, wherein, the normal of antenna refers to be perpendicular to whole antenna array The reference line in row face.

By above beam designing scheme, being applied to equivalence column pitch is 0.65～0.75 λ (λ is wavelength) Array antenna time, obtained wave beam schematic diagram is as shown in Figure 3.This antenna beam includes One wave beam 310 and the second wave beam 320, wherein the first wave beam 310 is positioned at the normal of antenna and (i.e. schemes In the direction of 0 °) direction, the second wave beam is positioned at the normal both sides of antenna.

From figure 3, it can be seen that the overlapping region of borderline region beam gain has obtained effectively Suppression, and graing lobe convergence is preferably, and then advantageously reduce the interference between adjacent area.And relative to Prior art, wave beam effectively reduces in the loss of the coherent gain of normal direction.

It should be noted that it is 0.65～0.75 λ that above beam designing is applied at equivalence column pitch During array antenna, can solve tradition beam designing equivalence column pitch increase time occurred ask Topic.Additionally, above beam designing can be also used for the array antenna of 0.6 traditional below λ, right These embodiments of the invention do not do any restriction, for traditional array antenna, art technology Personnel can select traditional beam designing or above beam designing as required.

Below in conjunction with specific embodiment, describe forming method and the dress of above multi-beam in detail Putting, be only for example the most below, those skilled in the art can use other method and apparatus real The multi-beam of above form, all within protection scope of the present invention.

Embodiments of the invention provide a kind of method of beam shaping, shown in reference Fig. 4, and the party Method comprises the steps:

401, M road signal is received.

Wherein, M is positive integer.

402, the M road signal received is carried out figuration process, obtain N road signal.

Wherein, N is the positive integer more than M.

403, above N road signal is formed the first wave beam and the second ripple after antenna array radiation Bundle, wherein, the first wave beam is positioned at the normal direction of aerial array, and the second wave beam is positioned at antenna array The normal both sides of row.

Concrete, as a example by 4 the most frequently used row planar arrays, i.e. M is 4, when N is 8,

Optionally, it is possible to use weight matrix carries out figuration process, weight matrix to M road signal B is:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, α, β are range coefficient,

About the value of α, β, the present embodiment does not do any restriction, if meet above with respect to α, The requirement of β, a kind of value is exemplified as: α=0.2912, β=0.6444.

Above weight matrix is used to carry out the result of figuration process as follows:

[TRX0 TRX1 TRX2 TRX3] × B=[A0 A1 A2 A3 A4 A5 A6 A7]

Wherein, the M road signal that TRX0, TRX1, TRX2, TRX3 respectively receive (M=4), in formula, on the right of equal sign, A0-A7 is respectively the N road of output after figuration processes Signal (N=8).

The method of the beam shaping that embodiments of the invention provide, by believing the M road received Number carry out figuration process, obtain N road signal, by the N road signal that obtains through antenna array radiation Rear formation the first wave beam and the second wave beam, wherein the first wave beam is positioned at the normal side of aerial array To, the second wave beam is positioned at the normal both sides of aerial array, decreases the overlapping region of beam gain, Solve the problem that Lin Qu interference is bigger.The equivalent column pitch being particularly useful for array antenna is 0.65 During λ～0.75 λ, effect is clearly.

The embodiment of the present invention also provides for a kind of beam forming device, shown in its structure reference Fig. 5, This beam forming device 50 includes: interface unit 501, figuration unit 502 and aerial array 503。

Wherein, interface unit 501, it is used for receiving M road signal, wherein M is positive integer.

Figuration unit 502, for M road signal is carried out figuration process, obtains N road signal, its In, N is the positive integer more than M.

Aerial array 503, forms first wave bundle and the second ripple for N road signal carries out radiation Bundle, wherein, the first wave beam is positioned at the normal direction of aerial array, and the second wave beam is positioned at antenna array The normal both sides of row.

Optionally, in 4 conventional row planar arrays, M is 4, and N is 8.

Concrete optional, figuration unit 502, it is further used for exploitation right value matrix and M road is believed Number carrying out figuration process, wherein weight matrix B is:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, α, β are range coefficient,

The beam forming device that embodiments of the invention provide, by the M road signal received Carry out figuration process, obtain N road signal, by the N road signal that obtains after antenna array radiation Forming the first wave beam and the second wave beam, wherein the first wave beam is positioned at the normal direction of aerial array, Second wave beam is positioned at the normal both sides of aerial array, decreases the overlapping region of beam gain, solves The problem that the interference of Jue Liaolin district is bigger.The equivalent column pitch being particularly useful for array antenna is 0.65 λ ～during 0.75 λ effect is clearly.

Above beam-forming method realizes at analog domain, it is also possible to realize at numeric field.Divide below It is not described in detail in conjunction with the embodiments.

When analog domain realizes, above beam forming device can be real directly as antenna system Existing.The advantage of this scheme is to realize simply, and need not change leading between base band and radio frequency Road quantity.

With reference to shown in Fig. 6, another embodiment of the present invention provides a kind of beam forming device.Should Beam forming device includes signal source 61, figuration circuit 62 and aerial array 63.

Wherein, signal source 61, it is used for providing M road signal, wherein M is positive integer.

Figuration circuit 62, is connected to signal source 61, for M road signal is carried out figuration process, Obtaining N road signal, wherein, N is the positive integer more than M.

Aerial array 63, is connected to figuration circuit 62, is formed for N road signal carries out radiation First wave beam and the second wave beam, wherein, the first wave beam is positioned at the normal direction of aerial array, the Two wave beams are positioned at the normal both sides of aerial array.

Concrete, in 4 common row planar arrays, M is 4, and N is 8, this figuration circuit 62 is weights circuit, and the weight matrix B of weights circuit is:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, α, β are range coefficient,

Above weight matrix is used to carry out the result of figuration process as follows:

[TRX0 TRX1] × B=[A0 A1 A2 A3]；

[TRX2 TRX3] × B=[A4 A5 A6 A7]

Or,

[TRX0 TRX1]=[A0 A1 A2 A3] × B^H；

[TRX2 TRX3]=[A4 A5 A6 A7] × B^H。

Wherein, the M road signal that TRX0, TRX1, TRX2, TRX3 respectively receive (M=4), in formula, on the right of equal sign, A0-A7 is respectively the N road of output after figuration processes Signal (N=8), B^HInverse matrix for weight matrix B.

The beam forming device that embodiments of the invention provide, by the M road signal received Carry out figuration process, obtain N road signal, by the N road signal that obtains after antenna array radiation Forming the first wave beam and the second wave beam, wherein the first wave beam is positioned at the normal direction of aerial array, Second wave beam is positioned at the normal both sides of aerial array, decreases the overlapping region of beam gain, solves The problem that the interference of Jue Liaolin district is bigger.The equivalent column pitch being particularly useful for array antenna is 0.65 λ ～during 0.75 λ effect is clearly.

Another embodiment of the present invention provides a kind of beam forming device, with reference to shown in Fig. 7, is somebody's turn to do Device includes signal source 71, figuration circuit 72 and aerial array 73, and this figuration circuit 72 Including weights circuit 721 and phase-shift circuit 722.

Wherein, signal source 71, it is used for providing M road signal, wherein M is positive integer.

Figuration circuit 72, is connected to signal source 71, for M road signal is carried out figuration process, Obtaining N road signal, wherein, N is the positive integer more than M.

Aerial array 73, is connected to figuration circuit 72, is formed for N road signal carries out radiation First wave beam and the second wave beam, wherein, the first wave beam is positioned at the normal direction of aerial array, the Two wave beams are positioned at the normal both sides of aerial array.

Concrete optional, weights circuit 721, it is connected to signal source 71, for signal source is carried The M road signal of confession is weighted process and obtains initial N road signal, wherein, the power of weights circuit Value matrix is butler matrix.

Phase-shift circuit 722, is connected to weights circuit 721 and aerial array 73, for weights Initial N road signal after circuit 721 weighting processes carries out phase shift with the equal difference phase place of pi/2 phase difference Process, be provided to the N road signal of aerial array 73.

Further alternative, in 4 common row planar arrays, M is 4, and N is 8, weights The butler matrix Butler Matrix of circuit 721 is:

$ButlerMatrix=\left[\begin{array}{c}\mathrm{\α},\mathrm{\β}j,-\mathrm{\β},-\mathrm{\α}j\\ \mathrm{\α},-\mathrm{\β}j,-\mathrm{\β},\mathrm{\α}j\end{array}\right];$

Further, the phase shift matrix PS of phase-shift circuit 722 is:

$PS=\left[\begin{array}{cccc}1& 0& 0& 0\\ 0& e^{i\mathrm{\θ}}& 0& 0\\ 0& 0& e^{i2\mathrm{\θ}}& 0\\ 0& 0& 0& e^{i3\mathrm{\θ}}\end{array}\right];$

Wherein, α, β are range coefficient,θ=pi/2 or-pi/2.

Above weight matrix is used to carry out the result of figuration process as follows:

[TRX0 TRX1] × B × PS=[A0 A1 A2 A3]；

[TRX2 TRX3] × B × PS=[A4 A5 A6 A7]

Or,

[TRX0 TRX1]=[A0 A1 A2 A3] × PS^H×B^H；

[TRX2 TRX3]=[A4 A5 A6 A7] × PS^H×B^H。

Wherein, the M road signal that TRX0, TRX1, TRX2, TRX3 respectively receive (M=4), in formula, on the right of equal sign, A0-A7 is respectively the N road of output after figuration processes Signal (N=8), PS^HAnd B^HIt is respectively phase shift matrix PS and the inverse matrix of weight matrix B.

The beam forming device that embodiments of the invention provide, by the M road signal received Carry out figuration process, obtain N road signal, by the N road signal that obtains after antenna array radiation Forming the first wave beam and the second wave beam, wherein the first wave beam is positioned at the normal direction of aerial array, Second wave beam is positioned at the normal both sides of aerial array, decreases the overlapping region of beam gain, solves The problem that the interference of Jue Liaolin district is bigger.The equivalent column pitch being particularly useful for array antenna is 0.65 λ ～during 0.75 λ effect is clearly.

When numeric field realizes, the mode that software is combined with processor can be utilized real in base band Existing, in addition it is also possible to utilize a chip to go to realize.The advantage of this scheme is that amendment is flexible Property higher, however, it is desirable to the number of channels changed between base band and radio frequency.

One more embodiment of the present invention provides a kind of beam forming device, with reference to shown in Fig. 8, is somebody's turn to do Device includes signal source 8011 and processor 8012, certainly, also show memorizer 8013 in figure With bus 8014, this signal source 8011, processor 8012 and memorizer 8013 are by bus 8014 Connect and complete mutual communication.

This bus 8014 can be ISA (Industry Standard Architecture, industrial standard Architecture) bus, PCI (Peripheral Component, external equipment interconnect) bus or EISA (Extended Industry Standard Architecture, extended industry-standard architecture) Bus etc..This bus 8014 can be divided into address bus, data/address bus, control bus etc..For It is easy to represent, Fig. 8 only represents with a thick line, it is not intended that an only bus or The bus of type.Wherein:

Memorizer 8013 is used for storing executable program code, and this program code includes that computer is grasped Instruct.Memorizer 8013 may comprise high-speed RAM memorizer, it is also possible to also include non-easily The property lost memorizer (non-volatile memory), for example, at least one disk memory.

Processor 8012 is probably a central processing unit 8012 (Central Processing Unit, referred to as CPU), or specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), or be configured to implement the embodiment of the present invention One or more integrated circuits.

Wherein, signal source 8011, it is used for providing M road signal, wherein, M is positive integer.

Processor 8012, is connected to signal source 8011, for the M road signal providing signal source Carry out figuration process so that the N road signal obtained after process is formed after antenna array radiation First wave beam and the second wave beam, wherein, N is that positive integer the first wave beam more than M is positioned at antenna The normal direction of array, the second wave beam is positioned at the normal both sides of aerial array.

Optionally, in 4 common row planar arrays, M is 4, and N is 8.

Concrete optional, processor 8012, it is further used for exploitation right value matrix to M road signal Carrying out figuration process, wherein weight matrix B is:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, α, β are range coefficient,

Above weight matrix is used to carry out the result of figuration process as follows:

[TRX0 TRX1 TRX2 TRX3] × B=[A0 A1 A2 A3 A4 A5 A6 A7]

Wherein, the M road signal that TRX0, TRX1, TRX2, TRX3 respectively receive (M=4), in formula, on the right of equal sign, A0-A7 is respectively the N road of output after figuration processes Signal (N=8).

The beam forming device that embodiments of the invention provide, by the M road signal received Carry out figuration process, obtain N road signal, by the N road signal that obtains after antenna array radiation Forming the first wave beam and the second wave beam, wherein the first wave beam is positioned at the normal direction of aerial array, Second wave beam is positioned at the normal both sides of aerial array, decreases the overlapping region of beam gain, solves The problem that the interference of Jue Liaolin district is bigger.The equivalent column pitch being particularly useful for array antenna is 0.65 λ ～during 0.75 λ effect is clearly.

Embodiments of the invention also provide for a kind of computer program, are situated between including computer-readable Matter, this computer-readable medium includes batch processing code, for M road signal is carried out figuration Process so that the N road signal obtained after process formed after antenna array radiation the first wave beam and Second wave beam, wherein, M is positive integer, and N is the positive integer more than M, and the first wave beam position In the normal direction of aerial array, the second wave beam is positioned at the normal both sides of aerial array.

The computer program that embodiments of the invention provide, by believing the M road received Number carry out figuration process, obtain N road signal, by the N road signal that obtains through antenna array radiation Rear formation the first wave beam and the second wave beam, wherein the first wave beam is positioned at the normal side of aerial array To, the second wave beam is positioned at the normal both sides of aerial array, decreases the overlapping region of beam gain, Solve the problem that Lin Qu interference is bigger.

Through the above description of the embodiments, those skilled in the art can be clearly Solve the present invention to realize with hardware, or firmware realizes, or combinations thereof mode realizes. When implemented in software, above-mentioned functions can be stored in computer-readable medium or as One or more instructions or code on computer-readable medium are transmitted.Computer-readable is situated between Matter includes computer-readable storage medium and communication media, and wherein communication media includes being easy to from a ground Direction another place transmits any medium of computer program.Storage medium can be computer Any usable medium that can access.As example but be not limited to: computer-readable medium is permissible Including RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage Jie Matter or other magnetic storage apparatus or can be used in carrying or store there is instruction or data knot The desired program code of configuration formula also can be by any other medium of computer access.This Outward.Any connection can be suitable become computer-readable medium.Such as, if software is to make With coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line (DSL) or such as infrared ray, The wireless technology of radio and microwave etc from website, server or other remote source , then coaxial cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray, wireless With the wireless technology of microwave etc be included in affiliated medium fixing in.As used in the present invention , dish (Disk) and dish (disc) include compressing laser disc (CD), laser dish, laser disc, number The general laser disc of word (DVD), floppy disk and Blu-ray Disc, the duplication data of the usual magnetic of its mid-game, Dish then carrys out the duplication data of optics with laser.Above combination above should also be as being included in computer can Within reading the protection domain of medium.

The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is also Being not limited to this, any those of ordinary skill in the art are at the technical scope that the invention discloses In, the conversion that can readily occur in and replacement, all should contain within protection scope of the present invention. Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.

Claims (10)

1. the method for a beam shaping, it is characterised in that including:

Receiving M road signal, wherein M is positive integer；

Described M road signal being carried out figuration process, obtains N road signal, wherein, N is for being more than The positive integer of M；

Described N road signal is formed the first wave beam and the second wave beam after antenna array radiation, its In, described first wave beam is positioned at the normal direction of described aerial array, and described second wave beam is positioned at The normal both sides of described aerial array；

Described M is 4, and described N is 8；

Described described M road signal is carried out figuration process, including:

Exploitation right value matrix carries out figuration process, wherein said weight matrix to described M road signal For:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, B is weight matrix, and α, β are range coefficient,

Method the most according to claim 1, it is characterised in that

The equivalent column pitch of described array antenna is 0.65 λ～0.75 λ, and wherein, λ is wavelength.

3. a beam forming device, it is characterised in that including:

Interface unit, is used for receiving M road signal, and wherein M is positive integer；

Figuration unit, for described M road signal is carried out figuration process, obtains N road signal, Wherein, N is the positive integer more than M；

Aerial array, forms first wave bundle and the second ripple for described N road signal carries out radiation Bundle, wherein, described first wave beam is positioned at the normal direction of described aerial array, described second ripple Bundle is positioned at the normal both sides of described aerial array；

Described M is 4, and described N is 8；

Described figuration unit, is further used for exploitation right value matrix and composes described M road signal Shape processes, and wherein said weight matrix is:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, B is weight matrix, and α, β are range coefficient,

Device the most according to claim 3, it is characterised in that

The equivalent column pitch of described array antenna is 0.65 λ～0.75 λ, and wherein, λ is wavelength.

5. a beam forming device, it is characterised in that including:

Signal source, is used for providing M road signal, and wherein M is positive integer；

Figuration circuit, is connected to described signal source, for carrying out described M road signal at figuration Reason, obtains N road signal, and wherein, N is the positive integer more than M；

Aerial array, is connected to described figuration circuit, for being radiated by described N road signal Forming the first wave beam and the second wave beam, wherein, described first wave beam is positioned at described aerial array Normal direction, described second wave beam is positioned at the normal both sides of described aerial array；

Described M is 4, and described N is 8；

Described figuration circuit is weights circuit, and the weight matrix of described weights circuit is:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, B is weight matrix, and α, β are range coefficient,

Device the most according to claim 5, it is characterised in that described figuration circuit includes:

Weights circuit, is connected to described signal source, for the described M providing described signal source Road signal is weighted process and obtains initial N road signal, wherein, the weights of described weights circuit Matrix is butler matrix；

Phase-shift circuit, is connected to described weights circuit and described aerial array, for described power Initial N road signal after value circuit weighting processes is carried out at phase shift with the equal difference phase place of pi/2 phase difference Reason, is provided to the described N road signal of described aerial array.

Device the most according to claim 6, it is characterised in that

Described butler matrix Butler Matrix is:

$ButlerMatrix=\left[\begin{array}{c}\mathrm{\α},\mathrm{\β}j,-\mathrm{\β},-\mathrm{\α}j\\ \mathrm{\α},-\mathrm{\β}j,-\mathrm{\β},\mathrm{\α}j\end{array}\right];$

Further, the phase shift matrix of described phase-shift circuit is:

$PS=\left[\begin{array}{cccc}1& 0& 0& 0\\ 0& e^{i\mathrm{\θ}}& 0& 0\\ 0& 0& e^{i2\mathrm{\θ}}& 0\\ 0& 0& 0& e^{i3\mathrm{\θ}}\end{array}\right];$

Wherein, PS is phase shift matrix, and α, β are range coefficient,θ=pi/2 or-pi/2.

8. according to the device described in any one of claim 5 to 7,

The equivalent column pitch of described array antenna is 0.65 λ～0.75 λ, and wherein, λ is wavelength.

9. a beam forming device, it is characterised in that including:

Signal source, is used for providing M road signal, and wherein, M is positive integer；

Processor, is connected to described signal source, for the described M road providing described signal source Signal carries out figuration process so that the N road signal obtained after process is after antenna array radiation Forming the first wave beam and the second wave beam, wherein, N is the positive integer more than M, and described first Wave beam is positioned at the normal direction of described aerial array, and described second wave beam is positioned at described aerial array Normal both sides；

Described M is 4, and described N is 8；

Described processor, is further used for exploitation right value matrix and described M road signal is carried out figuration Processing, wherein said weight matrix is:

$B=\left[\begin{array}{cc}\begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}& 0\\ 0& \begin{array}{cccc}\mathrm{\α}& \mathrm{\β}& \mathrm{\β}& \mathrm{\α}\\ \mathrm{\α}& -\mathrm{\β}& \mathrm{\β}& -\mathrm{\α}\end{array}\end{array}\right];$

Wherein, B is weight matrix, and α, β are range coefficient,

Device the most according to claim 9, it is characterised in that

The equivalent column pitch of described array antenna is 0.65 λ～0.75 λ, and wherein, λ is wavelength.