CN103499827A - Method and device for regulating signals - Google Patents

Method and device for regulating signals Download PDF

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Publication number
CN103499827A
CN103499827A CN201310452308.5A CN201310452308A CN103499827A CN 103499827 A CN103499827 A CN 103499827A CN 201310452308 A CN201310452308 A CN 201310452308A CN 103499827 A CN103499827 A CN 103499827A
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China
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described
signal
amp
correlator
coherence messages
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CN201310452308.5A
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Chinese (zh)
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CN103499827B (en
Inventor
邓中亮
杨磊
尹露
席岳
詹中伟
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北京邮电大学
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/35Constructional details or hardware or software details of the signal processing chain
    • G01S19/37Hardware or software details of the signal processing chain

Abstract

The invention discloses a method and a device for regulating signals, which are capable of increasing the locating accuracy by increasing the stripping degree of carrier waves and spreading codes in the signals. The method comprises the steps of obtaining frequency mixing signals by carrying out frequency mixing on signals which are currently received and signals which are locally recurrent, obtaining coherent information according to the frequency mixing signals and the spreading codes which are locally generated, processing the coherent information, obtaining a processing result, regulating signals which are locally generated by adopting the processing result, and stripping the carrier waves and the spreading codes in the signals which are received at the next moment from each other by adopting the signals which are regulated. According to the method and the device, disclosed by the embodiment of the invention, the carrier waves and the instantaneous codes which are locally generated can be respectively consistent with receiving carrier waves and receiving codes, and thus the stripping degree of the carrier waves and the spreading codes in the signals which are received at the next moment can be increased.

Description

Signal Regulation method and device

Technical field

The present invention relates to computer realm, particularly a kind of Signal Regulation method and device.

Background technology

Satellite positioning tech comes from 20 middle of century, and global position system can provide three-dimensional localization, navigation and time service service, and Satellite Navigation Technique is widely used in the fields such as public safety, intelligent transportation, deep-sea fishing, forest fire protection.At present main positioning system has the Big Dipper (BDS), GPS(Global Positioning System), the GLONASS(Galileo) and the GALILEO(GLONASS).

In global position system, need be regulated the signal received, the carrier wave in signal and spreading code are peeled off, be convenient to obtain carrier parameter and the spreading code parameter is carried out subsequent treatment.But, often occur in practice that in signal, carrier wave and spreading code extent of exfoliation are lower, affect the problem of positioning precision.

Summary of the invention

The embodiment of the present invention provides a kind of Signal Regulation method and device, can improve carrier wave and spreading code extent of exfoliation in signal, thereby improves positioning precision.

The embodiment of the present invention adopts following technical scheme:

A kind of Signal Regulation method comprises:

The signal of current reception and the signal of local reproduction are carried out to mixing, obtain mixed frequency signal;

Obtain coherence messages according to described mixed frequency signal and the local spreading code generated;

Described coherence messages is processed, obtained result;

Apply described result and regulate the local signal generated, carrier wave and spreading code in the signal that the signal after application is regulated receives next are constantly peeled off.

A kind of Signal Conditioning Equipment comprises:

Frequency mixing module, carry out mixing for the signal by current reception and the signal of local reproduction, obtains mixed frequency signal;

Relevant module, for obtaining coherence messages according to described mixed frequency signal and the local spreading code generated;

Processing module, for described coherence messages is processed, obtain result;

Adjustment module, regulate the local signal generated for applying described result, and carrier wave and spreading code in the signal that the signal after application is regulated receives next are constantly peeled off.

Based on technique scheme, carry out mixing by the signal by current reception with the local signal reappeared and obtain mixed frequency signal, obtain coherence messages according to described mixed frequency signal and the local spreading code generated, described coherence messages is processed and obtained result, apply described result and regulate the local signal generated, carrier wave and spreading code in the signal that signal after application is regulated receives next are constantly peeled off, thereby realize that carrier wave and spreading code in signal peel off, can improve carrier wave and spreading code extent of exfoliation in signal.

The accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The process flow diagram of a kind of Signal Regulation method that Fig. 1 provides for one embodiment of the invention;

A kind of hardware structure schematic diagram that Fig. 2 provides for the embodiment of the present invention;

The process flow diagram of a kind of Signal Regulation method that Fig. 3 provides for one embodiment of the invention;

The structural representation of a kind of Signal Conditioning Equipment that Fig. 4 provides for one embodiment of the invention;

The structural representation of a kind of Signal Conditioning Equipment that Fig. 5 provides for one embodiment of the invention;

One of Fig. 6 a is that the embodiment of the present invention is regulated BOC(n, n) the error schematic diagram of family's signal output;

Fig. 6 b is that the embodiment of the present invention is regulated BOC(n, n) the error schematic diagram of family's signal output two;

Fig. 6 c is that the embodiment of the present invention is regulated BOC(n, n) the error schematic diagram of family's signal output three;

Fig. 6 d is that the embodiment of the present invention is regulated BOC(n, n) the error schematic diagram of family's signal output four;

One of Fig. 7 a is that the embodiment of the present invention is regulated BOC(2n, n) the error schematic diagram of family's signal output;

Fig. 7 b is that the embodiment of the present invention is regulated BOC(2n, n) the error schematic diagram of family's signal output two;

Fig. 7 c is that the embodiment of the present invention is regulated BOC(2n, n) the error schematic diagram of family's signal output three;

Fig. 7 d is that the embodiment of the present invention is regulated BOC(2n, n) the error schematic diagram of family's signal output four;

One of Fig. 8 a is that the embodiment of the present invention is regulated BOC(6n, n) the error schematic diagram of family's signal output;

Fig. 8 b is that the embodiment of the present invention is regulated BOC(6n, n) the error schematic diagram of family's signal output two;

Fig. 8 c is that the embodiment of the present invention is regulated BOC(6n, n) the error schematic diagram of family's signal output three;

Fig. 8 d is that the embodiment of the present invention is regulated BOC(6n, n) the error schematic diagram of family's signal output four;

One of Fig. 9 a is that the embodiment of the present invention is regulated BOC(7n, n) the error schematic diagram of family's signal output;

Fig. 9 b is that the embodiment of the present invention is regulated BOC(7n, n) the error schematic diagram of family's signal output two;

Fig. 9 c is that the embodiment of the present invention is regulated BOC(7n, n) the error schematic diagram of family's signal output three;

Fig. 9 d is that the embodiment of the present invention is regulated BOC(7n, n) the error schematic diagram of family's signal output four;

One of Figure 10 a is that the embodiment of the present invention is regulated BOC(3n, 2n) the error schematic diagram of family's signal output;

Figure 10 b is that the embodiment of the present invention is regulated BOC(3n, 2n) the error schematic diagram of family's signal output two;

Figure 10 c is that the embodiment of the present invention is regulated BOC(3n, 2n) the error schematic diagram of family's signal output three;

Figure 10 d is that the embodiment of the present invention is regulated BOC(3n, 2n) the error schematic diagram of family's signal output four.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.

As shown in Figure 1, a kind of Signal Regulation method that one embodiment of the invention provides comprises:

110, the signal of current reception and the signal of local reproduction are carried out to mixing, obtain mixed frequency signal.

120, obtain coherence messages according to this mixed frequency signal and the local spreading code generated.

130, this coherence messages is processed, obtained result.

140, apply this result and regulate the local signal generated, carrier wave and spreading code in the signal that the signal after application is regulated receives next are constantly peeled off.

This enforcement can realize by Signal Conditioning Equipment, and this Signal Conditioning Equipment can be signal receiver etc., and the present embodiment is not done restriction.

The Signal Regulation method of the present embodiment, carry out mixing by the signal by current reception with the local signal reappeared and obtain mixed frequency signal, obtain coherence messages according to mixed frequency signal and the local spreading code generated, coherence messages is processed and obtained result, the application result is regulated the local signal generated, carrier wave and spreading code in the signal that signal after application is regulated receives next are constantly peeled off, thereby realize that carrier wave and spreading code in signal peel off, can improve carrier wave and spreading code extent of exfoliation in signal.

Alternatively, the spreading code that this this locality generates is M road spreading code, M is more than or equal to 3 odd number, while in above-mentioned 120, according to this mixed frequency signal and the local spreading code generated, obtaining coherence messages, can apply this M road spreading code this mixed frequency signal is processed, obtain instant coherence messages and non-instant coherence messages;

Correspondingly, this coherence messages is processed in above-mentioned 130, while obtaining result, can be processed and obtain the first information this instant coherence messages; This non-instant coherence messages is processed to second information that obtains;

Alternatively, above-mentioned this non-instant coherence messages is processed while obtaining the second information, can be realized by following any method:

Method one

According to E n ( τ ) = Σ i = 1 N α i ( | R ( τ + D i / 2 ) | n - | R ( τ - D i / 2 ) | n ) - - - ( 1 )

This non-instant coherence messages is processed to second information that obtains, wherein, S n(τ) be the second information, R(τ+D i/ 2) be non-instant coherence messages, n is 1 or 2, and in formula, N is a pair of correlator for early encircling right quantity, every two correlators of correlator late, α ifor the weights of every a pair of correlator output are determined according to the weight table prestored, D iinterval for every a pair of correlator.

Method two

According to S n ( τ ) = Σ i = 1 N α i ( | R ( τ + D i / 2 ) | n - | R ( τ - D i / 2 ) | n ) Σ i = 1 N α i ( | R ( τ + D i / 2 ) | n + | R ( τ - D i / 2 ) | n ) - - - ( 2 )

This non-instant coherence messages is processed to second information that obtains, wherein, S n(τ) be the second information, R(τ+D i/ 2) be non-instant coherence messages, n is 1 or 2, and in formula, right quantity, every two correlators of N correlator are a pair of correlator, α ifor the weights of every a pair of correlator output are determined according to the weight table prestored, D iinterval for every a pair of correlator.

Correspondingly, in above-mentioned 140, this result of application is regulated the local signal generated, when the carrier wave in the signal that the signal after application is regulated receives next constantly and spreading code are peeled off, can apply this first information and this second information and regulate the local signal generated, carrier wave and spreading code in the signal that the signal after application is regulated receives next are constantly peeled off.

Alternatively, above-mentioned this non-instant coherence messages is processed and is obtained the second information before, according to error originated from input and correlator quantity to correlator output carry out linear fit and set up this weight table, the English full name of this weight table storage BOC(not of the same clan is Binary Offset Carrier, and Chinese translation is binary offset carrier) weights of signal when varying number correlator quantity.

The weight table of the weights of for example, shown in, can application table 1 in the present embodiment form storage BOC signal not of the same clan when varying number correlator quantity.

Table 1

Recorded BOC(n, n in table 1), BOC(2n, n), BOC(6n, n), BOC(7n, n), BOC(3n, 2n) family's signal weights that are 2,3,4 o'clock each correlators at correlator quantity N.In table 1, N is correlator quantity, and a means correlator, and D is early slow central spacer.

Below introduce the method for building up of table 1:

According to the output intent of Discr., in known above-mentioned formula (1):

E n(τ)=βτ?????????????(3)

E n(τ) ≠ 0, τ ≠ 0 and | τ |≤D max/ 2 (4)

In the embodiment of the present invention, can take the way of approaching to realize formula (3), make square error

e = ∫ - D max / 2 D max / 2 ( E n ( τ ) - βτ ) 2 dτ - - - ( 5 )

Minimum, wherein β is any real number, so weights α ineed to meet

de d α i = 0 - - - ( 6 )

When N=2, obtain:

e = ∫ - D max / 2 D max / 2 α 1 ( | R ( τ + D 1 / 2 ) | n - | R ( τ - D 1 / 2 ) | n ) + α 2 ( | R ( τ + D 2 / 2 ) | n - | R ( τ - D 2 / 2 ) | n ) - βτ 2 dτ - - - ( 7 )

de d α 1 = α 1 ∫ - D max / 2 D max / 2 ( | R ( τ + D 1 / 2 ) | n - | R ( τ - D 1 / 2 ) | n ) 2 dτ + α 2 ∫ - D max / 2 D max / 2 ( | R ( τ + D 1 / 2 ) | n - | R ( τ - D 1 / 2 ) | n ) ( | R ( τ + D 2 / 2 ) | n - | R ( τ - D 2 / 2 ) | n ) dτ - β ∫ - D max / 2 D max / 2 τ ( | R ( τ + D 1 / 2 ) | n - | R ( τ - D 1 / 2 ) | n ) dτ

de d α 2 = α 2 ∫ - D max / 2 D max / 2 ( | R ( τ + D 2 / 2 ) | n - | R ( τ - D 2 / 2 ) | n ) 2 dτ + α 1 ∫ - D max / 2 D max / 2 ( | R ( τ + D 1 / 2 ) | n - | R ( τ - D 1 / 2 ) | n ) ( | R ( τ + D 2 / 2 ) | n - | R ( τ - D 2 / 2 ) | n ) dτ - β ∫ - D max / 2 D max / 2 τ ( | R ( τ + D 2 / 2 ) | n - | R ( τ - D 2 / 2 ) | n ) dτ

When

de d α 1 = 0 , de d α 2 = 0 - - - ( 8 )

Can obtain:

α 1 ∫ - D max / 2 D max / 2 ψ 1 2 ( τ ) dτ + α 2 ∫ - D max / 2 D max / 2 ψ 1 ( τ ) ψ 2 ( τ ) dτ = β ∫ - D max / 2 D max / 2 τ ψ 1 ( τ ) dτ - - - ( 9 )

α 2 ∫ - D max / 2 D max / 2 ψ 2 2 ( τ ) dτ + α 1 ∫ - D max / 2 D max / 2 ψ 1 ( τ ) ψ 2 ( τ ) dτ = β ∫ - D max / 2 D max / 2 τ ψ 2 ( τ ) dτ - - - ( 10 )

Wherein

ψ i(τ)=|R(τ+D i/2)| n-|R(τ-D i/2)| n,i=1,2????(11)

Obtain weights α according to formula (9) formula (10) 1with α 2, in order to simplify expression, can be write as the form of matrix, that is:

θ 11 θ 12 θ 21 θ 22 α 1 α 2 = β λ 1 λ 2 - - - ( 12 )

Wherein

θ ij = θ ji = ∫ - D max / 2 D max / 2 ψ i ( τ ) ψ j ( τ ) dτ , i , j = 1,2 - - - ( 13 )

λ i = ∫ - D max / 2 D max / 2 τ ψ i ( τ ) dτ , i = 1,2 - - - ( 14 )

Above-mentioned to take correlator quantity N=2 be example, the situation that should use the same method in the time of can obtaining other correlator quantity:

Wherein

θ ij = θ ji = ∫ - D max / 2 D max / 2 ψ i ( τ ) ψ j ( τ ) dτ , i , j = 1,2 , . . . N - - - ( 16 )

λ i = ∫ - D max / 2 D max / 2 τ ψ i ( τ ) dτ , i = 1,2 , . . . , N - - - ( 17 )

ψ i(τ)=|R(τ+D i/2)| n-|R(τ-D i/2)| n,i=1,2,…,N????(18)

By calculating

α=βθ -1λ???????????(19)

Can obtain weight vector undetermined, when getting β=1, the weights that can meet with a response, deposit the weights that obtain in above-mentioned table 1.

Below take the hardware structure shown in Fig. 2 as example, describe the specific implementation process of the embodiment of the present invention in detail in conjunction with the step shown in Fig. 3, be to be understood that, Fig. 2 is only a kind of hardware structure of the embodiment of the present invention, be to understand the embodiment of the present invention for convenience and the exemplary illustrated done, should be considered as the restriction to the embodiment of the present invention.

As shown in Figure 3, a kind of Signal Regulation method that one embodiment of the invention provides comprises:

310, the signal of current reception is applied respectively on I branch road and Q branch road to frequency mixer 21 and carried out mixing with local sinusoidal carrier and the cosine carrier reappeared, obtain mixed frequency signal i, mixed frequency signal q.

Wherein, by the signal of current reception, can be digital medium-frequency signal.

320, mixed frequency signal i, mixed frequency signal q input correlator 22, correlator carries out computing with the M road spreading code that movement stack 23 produces respectively by mixed frequency signal i, mixed frequency signal q, obtains M road operation result.

Wherein, M is more than or equal to 3 odd number.

330, M road operation result is exported after integration-zero clearing to coherent integration (coherence messages) above.

340, by the coherent integration on instant branch road in the M road (instant coherence messages) above I p, Q pincoming carrier ring Discr. 24.

Wherein, 24 couples of I of carrier wave Discr. p, Q pdisposal route can, with reference to existing techniques in realizing, not repeat.

350, by the coherent integration of other branch road in the M road (non-instant coherence messages) above input code ring Discr. 25.

Wherein, code ring Discr. 25 can apply above-mentioned formula (1) or formula (2) is processed coherent integration, does not repeat.

360, carrier wave ring wave filter 26 carries out filtering by the output of carrier wave Discr. 24, and, by filtering incoming carrier NCO28 as a result, carrier wave NCO28 application filtering result is adjusted the states such as output phase and frequency, regulates the signal that next receives constantly.

370, Loop filter 27 carries out filtering by the output of code Discr. 25, and by filtering input code NCO29 as a result, code NCO29 application filtering result is adjusted the states such as output phase and frequency, the signal that input BOC signal generator 30 and movement stack 23 receive constantly for regulating next.

By above-mentioned steps, can make local carrier wave, the instantaneous code produced be consistent with reception carrier, receiving code respectively, thereby improve the extent of exfoliation of carrier wave and spreading code in next signal constantly received.

Should be appreciated that the structure shown in Fig. 2 is to encircle late 3 pairs of morning, can be increased and decreased according to different situations in practical application, be not limited to 3 pairs.

The described hardware structure of Fig. 2 can be arranged in Signal Conditioning Equipment, and this Signal Conditioning Equipment can be signal receiver etc., and the present embodiment is not done restriction.

Shown in embodiment of the present invention application table 1, the weights of correlator are to BOC(n, n) family's signal regulated, and when Discr. quantity N is 1,2,3,4, code ring Discr. 25 output error schematic diagram are as shown in Fig. 6 a, Fig. 6 b, Fig. 6 c, Fig. 6 d.

Shown in embodiment of the present invention application table 1, the weights of correlator are to BOC(2n, n) family's signal regulated, and when Discr. quantity N is 1,2,3,4, code ring Discr. 25 output error schematic diagram are as shown in Fig. 7 a, Fig. 7 b, Fig. 7 c, Fig. 7 d.

Shown in embodiment of the present invention application table 1, the weights of correlator are to BOC(6n, n) family's signal regulated, and when Discr. quantity N is 1,2,3,4, code ring Discr. 25 output error schematic diagram are as shown in Fig. 8 a, Fig. 8 b, Fig. 8 c, Fig. 8 d.

Shown in embodiment of the present invention application table 1, the weights of correlator are to BOC(7n, n) family's signal regulated, and when Discr. quantity N is 1,2,3,4, code ring Discr. 25 output error schematic diagram are as shown in Fig. 9 a, Fig. 9 b, Fig. 9 c, Fig. 9 d.

Shown in embodiment of the present invention application table 1, the weights of correlator are to BOC(3n, 2n) family's signal regulated, and when Discr. quantity N is 1,2,3,4, code ring Discr. 25 output error schematic diagram are as shown in Figure 10 a, Figure 10 b, Figure 10 c, Figure 10 d.

As shown in Figure 4, a kind of Signal Conditioning Equipment that one embodiment of the invention provides comprises: frequency mixing module 41, and relevant module 42, adjustment module 43, processing module 44, wherein:

Frequency mixing module 41, carry out mixing for the signal by current reception and the signal of local reproduction, obtains mixed frequency signal;

Relevant module 42, for obtaining coherence messages according to mixed frequency signal and the local spreading code generated;

Processing module 43, for coherence messages is processed, obtain result;

Adjustment module 44, regulate for applying result the signal that next receives constantly, and carrier wave and spreading code in the signal that next is received are constantly peeled off.

The Signal Conditioning Equipment of the present embodiment can be realized above-mentioned Signal Regulation method, and Signal Conditioning Equipment can be receiver etc., and in this Signal Conditioning Equipment, the detailed implementation procedure of each module refers to said method embodiment.

The Signal Conditioning Equipment of the present embodiment, carry out mixing by the signal by current reception with the local signal reappeared and obtain mixed frequency signal, obtain coherence messages according to mixed frequency signal and the local spreading code generated, coherence messages is processed and obtained result, the application result is regulated the local signal generated, carrier wave and spreading code in the signal that signal after application is regulated receives next are constantly peeled off, thereby realize that carrier wave and spreading code in signal peel off, can improve carrier wave and spreading code extent of exfoliation in signal.

Alternatively, the local spreading code generated is M road spreading code, and M is more than or equal to 3 odd number, relevant module 42 specifically for, application M road spreading code is processed mixed frequency signal, obtains instant coherence messages and non-instant coherence messages;

Correspondingly, processing module 43 specifically for, instant coherence messages is processed and is obtained the first information; Non-instant coherence messages is processed to second information that obtains;

Correspondingly, adjustment module 44 specifically for, the application first information and the second information are regulated the local signal generated, carrier wave and spreading code in the signal that the signal after application is regulated receives next are constantly peeled off.

Alternatively, processing module 43 specifically for, according to E n ( τ ) = Σ i = 1 N α i ( | R ( τ + D i / 2 ) | n - | R ( τ - D i / 2 ) | n ) , Non-instant coherence messages is processed to second information that obtains, wherein, S n(τ) be the second information, R(τ+D i/ 2) be non-instant coherence messages, n is 1 or 2, and in formula, N is a pair of correlator for early encircling right quantity, every two correlators of correlator late, α ifor the weights of every a pair of correlator output are determined according to the weight table prestored, D iinterval for every a pair of correlator;

Perhaps, processing module 43 specifically for, according to non-instant coherence messages is processed to second information that obtains, wherein, S n(τ) be the second information, R(τ+D i/ 2) be non-instant coherence messages, n is 1 or 2, and in formula, N is a pair of correlator for early encircling right quantity, every two correlators of correlator late, α ifor the weights of every a pair of correlator output are determined according to the weight table prestored, D iinterval for every a pair of correlator.

Alternatively, as shown in Figure 5, this device also comprises:

Set up module 45, for according to error originated from input and correlator quantity to correlator output carry out linear fit and set up weight table, the weights of weight table storage BOC signal not of the same clan when varying number correlator quantity.

In above-mentioned Signal Conditioning Equipment, the function of each module is only done concise and to the point description, detailed description refers to above-mentioned signal paramodulation embodiment, above-mentioned Signal Conditioning Equipment can be realized above-mentioned signal paramodulation, and this Signal Conditioning Equipment can be signal receiver etc., and the present embodiment is not done restriction.

The Signal Conditioning Equipment of the present embodiment, carry out mixing by the signal by current reception with the local signal reappeared and obtain mixed frequency signal, obtain coherence messages according to mixed frequency signal and the local spreading code generated, coherence messages is processed and obtained result, the application result is regulated the local signal generated, carrier wave and spreading code in the signal that signal after application is regulated receives next are constantly peeled off, thereby realize that carrier wave and spreading code in signal peel off, can improve carrier wave and spreading code extent of exfoliation in signal.

Each embodiment in this instructions all adopts the mode of going forward one by one to describe, and the identical similar part of each embodiment is mutually referring to getting final product, and each embodiment stresses is the difference with other embodiment.Especially, for device embodiment, due to it, substantially similar in appearance to embodiment of the method, so describe fairly simplely, relevant part gets final product referring to the part explanation of embodiment of the method.Device embodiment described above is only schematic, the wherein said unit as the separating component explanation can or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed on a plurality of network element.Can select according to the actual needs some or all of module wherein to realize the purpose of the present embodiment scheme.Those of ordinary skills in the situation that do not pay creative work, can understand and implement.

Those of ordinary skills can recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.

The those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the system of foregoing description, device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.

Through the above description of the embodiments, the those skilled in the art can be well understood to the mode that the present invention can add essential common hardware by software and realize, common hardware comprises universal integrated circuit, universal cpu, general-purpose storage, universal elements etc., can certainly comprise that special IC, dedicated cpu, private memory, special-purpose components and parts etc. realize by specialized hardware, but in a lot of situation, the former is better embodiment.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium can read, floppy disk as computing machine, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method for each embodiment of the present invention.

These are only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (10)

1. a Signal Regulation method, is characterized in that, comprising:
The signal of current reception and the signal of local reproduction are carried out to mixing, obtain mixed frequency signal;
Obtain coherence messages according to described mixed frequency signal and the local spreading code generated;
Described coherence messages is processed, obtained result;
Apply described result and regulate the local signal generated, carrier wave and spreading code in the signal that the signal after application is regulated receives next are constantly peeled off.
2. method according to claim 1, is characterized in that, the described local spreading code generated is M road spreading code, and M is more than or equal to 3 odd number, and the described spreading code according to described mixed frequency signal and local generation obtains coherence messages and comprises:
Apply described M road spreading code described mixed frequency signal is processed, obtain instant coherence messages and non-instant coherence messages;
Correspondingly, described described coherence messages is processed, is obtained result and comprise:
Described instant coherence messages is processed and obtained the first information;
Described non-instant coherence messages is processed to second information that obtains;
Correspondingly, the described result of described application is regulated the local signal generated, and the carrier wave in the signal that the signal after application is regulated receives next constantly and spreading code are peeled off and comprised:
Apply the described first information and described the second information and regulate the signal of local generation, carrier wave and spreading code in the signal that the signal after application is regulated receives next are constantly peeled off.
3. method according to claim 2, is characterized in that, described described non-instant coherence messages is processed and obtained the second information and comprise:
n is 1 or 2, and in formula, N early encircles the right quantity of correlator, α late ifor the weights of every a pair of correlator output, D iinterval for every a pair of correlator.
4. method according to claim 2, is characterized in that, described described non-instant coherence messages is processed and obtained the second information and comprise:
According to S n ( τ ) = Σ i = 1 N α i ( | R ( τ + D i / 2 ) | n - | R ( τ - D i / 2 ) | n ) Σ i = 1 N α i ( | R ( τ + D i / 2 ) | n + | R ( τ - D i / 2 ) | n ) Described non-instant coherence messages is processed to second information that obtains, wherein, S n(τ) be the second information, R(τ+D i/ 2) be non-instant coherence messages, n is 1 or 2, and in formula, N early encircles the right quantity of correlator, α late ifor the weights of every a pair of correlator output, D iinterval for every a pair of correlator.
5. according to the described method of claim 3 or 4, it is characterized in that, described described non-instant coherence messages is processed and is obtained the second information before, also comprise:
According to error originated from input and correlator quantity to correlator output carry out linear fit and determine described weights α i.
6. according to the described method of any one in claim 1 to 5, it is characterized in that described weights α idetermine the weights of described weight table storage binary offset carrier BOC signal not of the same clan when varying number correlator quantity according to the weight table prestored.
7. a Signal Conditioning Equipment, is characterized in that, comprising:
Frequency mixing module, carry out mixing for the signal by current reception and the signal of local reproduction, obtains mixed frequency signal;
Relevant module, for obtaining coherence messages according to described mixed frequency signal and the local spreading code generated;
Processing module, for described coherence messages is processed, obtain result;
Adjustment module, regulate the local signal generated for applying described result, and carrier wave and spreading code in the signal that the signal after application is regulated receives next are constantly peeled off.
8. device according to claim 7, it is characterized in that, the described local spreading code generated is M road spreading code, M is more than or equal to 3 odd number, described relevant module specifically for, apply described M road spreading code described mixed frequency signal is processed, obtain instant coherence messages and non-instant coherence messages;
Correspondingly, described processing module specifically for, described instant coherence messages is processed and is obtained the first information; Described non-instant coherence messages is processed to second information that obtains;
Correspondingly, described adjustment module specifically for, apply the described first information and described the second information is regulated the local signal generated, carrier wave and spreading code in the signal that the signal after application is regulated receives next are constantly peeled off.
9. according to the described device of claim 7 or 8, it is characterized in that, described processing module specifically for, 1 or 2, in formula, N early encircles the right quantity of correlator, α late ifor the weights of every a pair of correlator output are determined according to the weight table prestored, D iinterval for every a pair of correlator;
Perhaps, described processing module specifically for, according to described non-instant coherence messages is processed to second information that obtains, wherein, S n(τ) be the second information, R(τ+D i/ 2) be non-instant coherence messages, n is 1 or 2, and in formula, N early encircles the right quantity of correlator, α late ifor the weights of every a pair of correlator output are determined according to the weight table prestored, D iinterval for every a pair of correlator.
10. according to the described device of any one in claim 7 to 9, it is characterized in that, also comprise:
Set up module, for according to error originated from input and correlator quantity to correlator output carry out linear fit and set up described weight table, the weights of described weight table storage BOC signal not of the same clan when varying number correlator quantity.
CN201310452308.5A 2013-09-26 2013-09-26 Signal Regulation method and device CN103499827B (en)

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