CN118138157A - Method for quickly capturing signals of multi-target spread spectrum tracking receiver - Google Patents
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- H—ELECTRICITY
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- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
- H04B17/295—Detection of non-compliance or faulty performance, e.g. response deviations
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- H04B1/69—Spread spectrum techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
- H04B17/297—Self-testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
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Abstract
A multi-target spread spectrum tracking receiver signal quick capturing method relates to the signal tracking capturing technical field, firstly, presetting a spread spectrum parameter configuration library, a spread spectrum tracking receiver compares a plurality of searched satellite spread spectrum signal parameters with preset spread spectrum signal parameters in spread spectrum codes in the spread spectrum parameter configuration library, then, comparing according to a sequential logic process, finally, after the comparison is consistent, capturing and tracking corresponding satellite signals according to the spread spectrum signal parameters consistent in comparison, and simultaneously, the spread spectrum tracking receiver transmits carrier waves, pseudo code locking and other tracking signals to an upper computer; has the advantage of fast acquisition of satellite signals.
Description
Technical Field
The invention relates to the technical field of signal tracking and capturing, in particular to a method for quickly capturing signals of a multi-target spread spectrum tracking receiver.
Background
Spread Spectrum (SS) is a communication technology that spreads the Spectrum (Spectrum) of a transmission signal to a wider bandwidth than its original bandwidth, and the Spread signal can have a certain immunity to background noise, interference and self-multipath interference; the method has the advantages of good confidentiality, low possibility of interception in the communication process, and the like;
The spread spectrum tracking receiver is communication equipment capable of continuously tracking and capturing satellite signals, when the traditional spread spectrum tracking receiver works, firstly, according to a target instruction which is sent by an upper computer and contains a control command and a spread spectrum parameter configuration item of a target satellite, then the spread spectrum tracking receiver searches spread spectrum parameters of the satellite signals through an antenna, compares the searched spread spectrum parameters of the satellite signals with the spread spectrum parameter configuration item sent by the upper computer, and re-searches if the spread spectrum parameters are different, if the spread spectrum parameters are the same, the satellite is the target satellite, the spread spectrum tracking receiver sends carrier locking and pseudo code locking signals to the upper computer, and simultaneously continuously tracks and captures the spread spectrum signals of the target satellite, in addition, the satellite needs to be carried on a rocket to be lifted up together, so that the spread spectrum tracking receiver is equivalent to capturing the lifted-up track of the rocket in the process of continuously tracking and capturing the target satellite;
Along with the development of communication technology and the maturation of the technology of one arrow and multiple satellites, at present, when capturing and tracking target satellites, an upper computer sends multiple target instructions to enable a spread spectrum tracking receiver to judge and track one target satellite in the multiple satellites; however, when the spread spectrum tracking receiver processes a plurality of target instructions, the target instructions are still processed in sequence according to the method, however, each time the spread spectrum tracking receiver needs to consume a certain time when searching and capturing satellite spread spectrum signals, if the first few target instructions do not enable the spread spectrum tracking receiver to complete carrier locking and pseudo code locking, then an event of invalid searching for satellite spread spectrum signals occurs, so that more time is accumulated and wasted, and the whole spread spectrum signal tracking task is affected;
We therefore propose a method that enables fast acquisition of satellite spread spectrum signals.
Disclosure of Invention
In order to overcome the defects in the background technology, the invention discloses a rapid signal capturing method of a multi-target spread spectrum tracking receiver.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
1. A multi-target spread spectrum tracking receiver signal quick capturing method specifically comprises the following steps:
S1, presetting a spread spectrum parameter configuration library in a spread spectrum tracking receiver, wherein a plurality of groups of spread spectrum codes for editing different codes are arranged in the library, a plurality of spread spectrum signal parameters are written in each group of spread spectrum codes respectively, and a plurality of spread spectrum signal parameters in the same group are transmitted from the same satellite;
s2, after receiving a start control command with a code number sent by an upper computer, the spread spectrum tracking receiver starts to enter a signal capturing and comparing stage;
s3, in the signal capturing and comparing stage, the spread spectrum tracking receiver invokes a spread spectrum code of a corresponding code in the library according to the code of the start control command; searching spread spectrum signal parameters sent by satellites in the current antenna area;
S4, the first in the spreading code Band spread spectrum signal parameters,/>Initial value of 1, and the searched/>Comparing the parameters of the strip spread spectrum signals,/>The initial value of (1) is also 1;
S5, if the two spread spectrum signal parameters in the step S4 are consistent in comparison, the spread spectrum tracking receiver sends carrier locking and pseudo code locking signals to the upper computer, and meanwhile, the current first step is carried out Continuously tracking and capturing a target satellite corresponding to the strip spread spectrum signal parameters;
S6, if the two spread spectrum signal parameters in the step S4 are inconsistent, then Repeating steps S4 and S5 after +1;
S7, if in the step S6, N, where n is the number of spread spectrum signal parameters in the current spreading code, then/>+1, And repeating steps S4, S5 and S6 after i is reassigned to 1;
s8, if in the step S7, And (3) m, wherein m is the number of spread spectrum signal parameters sent by satellites in the current antenna area searched by the receiver, and repeating the steps S4, S5, S6 and S7 after j and i are reassigned to be 1.
Preferably, in the step S5, if the spread spectrum tracking receiver does not transmit the carrier lock and pseudo code lock signal to the upper computer within 4S, the process returns to the step S4.
Preferably, in the step S8,Spread spectrum signal parameters/>After the frequency of inconsistent spread spectrum signal parameters is 3 times, the spread spectrum tracking receiver sends an abnormal termination signal to the upper computer.
Preferably, the spread spectrum tracking receiver sends an abnormal termination signal to the upper computer and then performs fault self-detection.
Preferably, the fault self-checking method comprises the following steps:
S81, detecting whether the comprehensive state of a system unit of the spread spectrum tracking receiver is normal, if so, outputting an abnormal alarm signal of the system unit, and if not, outputting the abnormal alarm signal of the system unit;
s82, detecting whether the antenna receiving signal is normal, wherein the method comprises the following steps:
S821, detecting whether the signal of the access spread spectrum tracking receiver is normal, if so, outputting an access signal abnormality alarm signal, otherwise, outputting an access signal abnormality alarm signal;
s822, detecting whether a control instruction sent by the upper computer is successfully received, if so, outputting the control instruction to send out an abnormal alarm signal, and if not, outputting the control instruction to send out an abnormal alarm signal;
S823, detecting whether a radio frequency cable of the spread spectrum tracking receiver is connected to a corresponding port, ending self-detection if the radio frequency cable is normal, and outputting a radio frequency cable connection abnormality alarm signal if the radio frequency cable is abnormal.
Preferably, in the step S81, the determination of the comprehensive state of the system unit includes hardware detection and software detection, where the detection steps are as follows:
s811, detecting whether the working state of the spread spectrum signal processing mechanism is normal;
s812, detecting whether the working state of the broadband signal processing mechanism is normal;
S813, if the spread spectrum signal processing mechanism and the broadband signal processing mechanism are normal, performing the next step; if the working state of one of the spread spectrum signal processing mechanism and the broadband signal processing mechanism is abnormal, outputting an abnormal alarm signal corresponding to the working state of the mechanism;
S814, detecting whether the signal processing function of the FPGA is normal;
s815, detecting whether the signal processing function of the DSP is normal;
S816, if the signal processing functions of the FPGA and the DSP are normal, performing step S82; if the signal processing function of one mechanism in the FPGA and the DSP is abnormal, outputting a signal processing function abnormality alarm signal of the corresponding mechanism.
Preferably, the fault self-checking method operates in a single chip microcomputer chip in the spread spectrum tracking receiver.
Preferably, the method is capable of running in an FPGA chip within a spread spectrum tracking receiver.
Preferably, the FPGA chip adopts XCZU DR-2FFVG1517I model.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention discloses a multi-target spread spectrum tracking receiver signal rapid capturing method,
1. The method has the advantages that the spread spectrum signal parameters are directly fetched and compared in the spread spectrum tracking receiver, repeated transmission of spread spectrum signal parameter configuration and repeated capturing of the spread spectrum signal parameters of the satellite are not needed between the spread spectrum tracking receiver and an upper computer, and therefore the speed of the spread spectrum tracking receiver for determining the satellite to be captured is greatly reduced, and the purpose of capturing the spread spectrum signal of the tracking satellite rapidly is achieved;
2. the time for capturing satellite signals by the spread spectrum tracking receiver is controlled by limiting the time for locking the carrier and locking the pseudo code and the repeated comparison times of the two groups of spread spectrum signal parameters under the condition that the normal comparison and search capture of the spread spectrum signal parameters are not affected, so that the capturing and tracking efficiency of the spread spectrum tracking receiver is improved, and the time and resources are saved;
3. whether the spread spectrum tracking receiver has faults or not can be detected through fault self-checking, so that a preliminary judgment is made on the reasons of the satellite signal capturing failure, the time of subsequent investigation of workers is saved, the investigation pressure is reduced, the capturing operation can be carried out more quickly, and the overall satellite signal capturing efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a method step of the present invention;
FIG. 2 is a flow chart of a method of signal fast acquisition;
FIG. 3 is a flow chart of a self-test method.
Detailed Description
In the description, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., the drawings merely correspond to the drawings of the present invention, and in order to facilitate description of the present invention, it is not indicated or implied that the device or element referred to must have a specific azimuth:
Example 1 is:
a method for quickly capturing signals of a multi-target spread spectrum tracking receiver, which is described with reference to fig. 1-2, specifically comprises the following steps:
S1, a spread spectrum parameter configuration library is preset in a spread spectrum tracking receiver, a plurality of groups of spread spectrum codes for editing different codes are arranged in the library, a plurality of spread spectrum signal parameters are written in each group of spread spectrum codes respectively, a plurality of spread spectrum signal parameters positioned in the same group are emitted from the same satellite, a plurality of satellites are often carried on one rocket because each satellite can send a plurality of spread spectrum signal parameters, the plurality of groups of spread spectrum codes correspond to a plurality of satellites on the rocket, therefore, no matter which code corresponds to the spreading code is sent by an upper computer, if the spread spectrum tracking receiver captures a signal successfully, the movement track of the rocket can be positioned and captured for judging whether the subsequent rocket gesture is normal or not, and the code can distinguish the plurality of groups of spread spectrum codes;
s2, after receiving a start control command with a code number sent by an upper computer, the spread spectrum tracking receiver starts to enter a signal capturing and comparing stage;
s3, in the signal capturing and comparing stage, the spread spectrum tracking receiver invokes a spread spectrum code of a corresponding code in the library according to the code of the start control command; searching spread spectrum signal parameters sent by satellites in the current antenna area;
the method is characterized in that the adjustment and comparison of the spread spectrum signal parameters are directly carried out in a spread spectrum tracking receiver, repeated transmission of spread spectrum signal parameter configuration and repeated capturing of the spread spectrum signal parameters of the satellite are not needed between the spread spectrum tracking receiver and an upper computer, so that the speed of the spread spectrum tracking receiver for determining the satellite to be captured is greatly reduced, and the purpose of rapidly capturing the spread spectrum signal of the tracking satellite is achieved;
S4, the first in the spreading code Band spread spectrum signal parameters,/>Initial value of 1, and the searched/>Comparing the parameters of the strip spread spectrum signals,/>The initial value of (1) is also 1;
s5, if the two spread spectrum signal parameters in the step S4 are consistent in comparison, the spread spectrum tracking receiver sends signals such as carrier locking and pseudo code locking to the upper computer, and meanwhile, the current first step is carried out Continuously tracking and capturing a target satellite corresponding to the strip spread spectrum signal parameters;
The two spread spectrum signal parameters are the spread spectrum signal parameters in the current spread spectrum code and the satellite spread spectrum signal parameters searched by the receiver; in addition, when any one of the spread spectrum signal parameters is consistent with one of the spread spectrum signal parameter parameters received by the spread spectrum tracking receiver, the spread spectrum tracking receiver can locate the target satellite and perform subsequent signal locking and continuous tracking capture operations; in addition, after comparing two spread spectrum signal parameters to be consistent, the spread spectrum tracking receiver can check other locking signals except carrier locking and pseudo code locking by itself, and the signals can be sent to an upper computer together;
S6, if the two spread spectrum signal parameters in the step S4 are inconsistent, then Repeating steps S4 and S5 after +1;
S7, if in the step S6, N, where n is the number of spread spectrum signal parameters in the current spreading code, then/>+1, And repeating steps S4, S5 and S6 after i is reassigned to 1;
s8, if in the step S7, M, where m is the number of spread spectrum signal parameters sent by satellites in the current antenna area searched by the receiver, then/>And/>Repeating the steps S4, S5, S6 and S7 after the values are newly assigned to 1;
the method comprises the steps of performing cyclic comparison on a plurality of spread spectrum signal parameters in a spread spectrum code and a plurality of satellite spread spectrum signal parameters received by a spread spectrum tracking receiver;
Firstly, a plurality of groups of spread spectrum codes are written in a spread spectrum parameter configuration library in advance by a spread spectrum tracking receiver, a plurality of spread spectrum signal parameters in each group of spread spectrum codes are sent by the same satellite, then the spread spectrum tracking receiver calls the corresponding spread spectrum codes according to a control command with a certain spread spectrum code number sent by an upper computer, and simultaneously searches a plurality of spread spectrum signal parameters sent by a plurality of satellites in the current antenna direction;
The spread spectrum tracking receiver can confirm and track the satellite corresponding to the modulated spread spectrum code after comparing the searched spread spectrum signal parameters with the preset spread spectrum signal parameters in the modulated spread spectrum code one by one, and the frequency of the spread spectrum tracking receiver for capturing the spread spectrum signal of the satellite is effectively reduced, and the control instruction sent by the upper computer is not required to be received for many times, so that the signal capturing speed of the spread spectrum tracking receiver is greatly improved;
it should be noted that, the spreading codes written in the spreading parameter configuration library in advance are calculated by a program or sent by a satellite system, and the spreading signal parameters of the satellite where the current spreading tracks the antenna direction of the receiver; in addition, the method operates in an FPGA chip in the spread spectrum tracking receiver, and the FPGA chip adopts XCZU DR-2FFVG1517I model.
Example 2 is:
Based on embodiment 1, in the step S5, if the spread spectrum tracking receiver does not send carrier locking and pseudo code locking signals to the upper computer within 4S, the step S4 is returned, where the time is used to limit the time for comparing two sets of spread spectrum signal parameters by the spread spectrum tracking receiver and the time for searching satellite signals by the spread spectrum tracking receiver, so that the time for determining the target satellite by the spread spectrum tracking receiver is saved, and the efficiency of searching and capturing the target satellite by the spread spectrum tracking receiver is effectively improved;
It should be noted that, in the current spread spectrum tracking receiver, the capturing and tracking process of the target satellite is generally between 10 and 15 minutes, that is, after the preparation work is completed before the rocket is launched, and the time period during the rocket is launched, if the time for searching and capturing the target satellite in the earlier stage is shorter, the time for continuously capturing the spread spectrum signal of the target satellite in the later stage can be longer, so that the overall operation smoothness of the method in embodiment 1 can be effectively improved by limiting the comparison time of two sets of spread spectrum signal parameters, and the speed and efficiency of searching and capturing and tracking the target satellite by the spread spectrum tracking receiver are correspondingly improved.
Example 3 is:
On the basis of the above-mentioned embodiment 1, in the above-mentioned step S8, Spread spectrum parameter configuration item/>After the inconsistent frequency of the spread spectrum signal parameters is 3 times, the spread spectrum tracking receiver sends an abnormal termination signal to the upper computer, namely the satellite spread spectrum signal parameters searched by the spread spectrum tracking receiver and the spread spectrum signal parameters in the spread spectrum code are repeatedly judged for 3 times, so that under the condition that the spread spectrum tracking receiver is ensured to judge and compare the fault tolerance of the spread spectrum signal parameters, the time for comparing the spread spectrum signal parameters is controlled, the abnormal termination signal is sent in time, the staff is led to check the fault, and then the satellite signal is quickly captured again after the maintenance is finished; avoiding time waste caused by infinite judgment of satellite spread spectrum signal parameters and spread spectrum signals in a spread spectrum code.
Example 4 is:
Based on embodiment 3, referring to fig. 3, after the spread spectrum tracking receiver sends an abnormal termination signal to the upper computer, performing fault self-checking, and detecting whether the spread spectrum tracking receiver has a fault or not through the fault self-checking, so that a preliminary judgment is made on the reasons of failure in capturing satellite signals, the time for subsequent investigation by workers is saved, and the investigation pressure is reduced;
The fault self-checking method comprises the following steps:
S81, detecting whether the comprehensive state of a system unit of the spread spectrum tracking receiver is normal, if so, outputting an abnormal alarm signal of the system unit, and if not, outputting the abnormal alarm signal of the system unit;
s82, detecting whether the antenna receiving signal is normal, wherein the method comprises the following steps:
S821, detecting whether the signal of the access spread spectrum tracking receiver is normal, if so, outputting an access signal abnormality alarm signal, otherwise, outputting an access signal abnormality alarm signal;
s822, detecting whether a control instruction sent by the upper computer is successfully received, if so, outputting the control instruction to send out an abnormal alarm signal, and if not, outputting the control instruction to send out an abnormal alarm signal;
S823, detecting whether a radio frequency cable of the spread spectrum tracking receiver is connected to a corresponding port, ending self-detection if the radio frequency cable is normal, and outputting a radio frequency cable connection abnormality alarm signal if the radio frequency cable is abnormal.
In addition, in the step S81, the determination of the comprehensive state of the system unit includes hardware detection and software detection, where the detection steps are as follows:
s811, detecting whether the working state of the spread spectrum signal processing mechanism is normal;
s812, detecting whether the working state of the broadband signal processing mechanism is normal;
S813, if the spread spectrum signal processing mechanism and the broadband signal processing mechanism are normal, performing the next step; if the working state of one of the spread spectrum signal processing mechanism and the broadband signal processing mechanism is abnormal, outputting an abnormal alarm signal corresponding to the working state of the mechanism, wherein the part is hardware detection;
S814, detecting whether the signal processing function of the FPGA is normal;
s815, detecting whether the signal processing function of the DSP is normal;
S816, if the signal processing functions of the FPGA and the DSP are normal, performing step S82; if the signal processing function of one mechanism in the FPGA and the DSP is abnormal, outputting a signal processing function abnormality alarm signal of the corresponding mechanism, wherein the signal processing function abnormality alarm signal is detected by software;
The method can detect the main hardware and software components in the spread spectrum tracking receiver and make preliminary self-detection on signal capture abnormality, in addition, the fault self-detection method operates in a singlechip chip in the spread spectrum tracking receiver, and the singlechip is a chip independent of other existing components in the spread spectrum tracking receiver, so that the fault detection can be carried out on the existing components in the spread spectrum tracking receiver.
The invention has not been described in detail in the prior art, and it is apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. A multi-target spread spectrum tracking receiver signal rapid capturing method is characterized in that: the method comprises the following steps:
S1, presetting a spread spectrum parameter configuration library in a spread spectrum tracking receiver, wherein a plurality of groups of spread spectrum codes for editing different codes are arranged in the library, a plurality of spread spectrum signal parameters are written in each group of spread spectrum codes respectively, and a plurality of spread spectrum signal parameters in the same group are transmitted from the same satellite;
s2, after receiving a start control command with a code number sent by an upper computer, the spread spectrum tracking receiver starts to enter a signal capturing and comparing stage;
s3, in the signal capturing and comparing stage, the spread spectrum tracking receiver invokes a spread spectrum code of a corresponding code in the library according to the code of the start control command; searching spread spectrum signal parameters sent by satellites in the current antenna area;
S4, the first in the spreading code Band spread spectrum signal parameters,/>Initial value of 1, and the searched/>Comparing the parameters of the strip spread spectrum signals,/>The initial value of (1) is also 1;
S5, if the two spread spectrum signal parameters in the step S4 are consistent in comparison, the spread spectrum tracking receiver sends carrier locking and pseudo code locking signals to the upper computer, and simultaneously continuously tracks and captures a target satellite corresponding to the current jth spread spectrum signal parameter;
S6, if the two spread spectrum signal parameters in the step S4 are inconsistent, repeating the step S4 and the step S5 after the step i+1;
S7, if in the step S6, N, where n is the number of spread spectrum signal parameters in the current spreading code, then/>+1, And repeating steps S4, S5 and S6 after i is reassigned to 1;
s8, if in the step S7, M, where m is the number of spread spectrum signal parameters sent by satellites in the current antenna area searched by the receiver, then/>And/>And repeating the steps S4, S5, S6 and S7 after the values are again assigned to 1.
2. The method for quickly acquiring the signal of the multi-target spread spectrum tracking receiver as claimed in claim 1, wherein: in the step S5, if the spread spectrum tracking receiver does not transmit the carrier lock and pseudo code lock signal to the upper computer within 4S, the process returns to the step S4.
3. The method for quickly acquiring the signal of the multi-target spread spectrum tracking receiver as claimed in claim 1, wherein: in the step S8 of the above-mentioned process,Spread spectrum signal parameters/>After the frequency of inconsistent spread spectrum signal parameters is 3 times, the spread spectrum tracking receiver sends an abnormal termination signal to the upper computer.
4. A method for fast acquisition of a multi-target spread spectrum tracking receiver signal as claimed in claim 3, characterized by: and after the spread spectrum tracking receiver sends an abnormal termination signal to the upper computer, fault self-detection is carried out.
5. The method for quickly acquiring the signal of the multi-target spread spectrum tracking receiver as claimed in claim 4, wherein: the fault self-checking method comprises the following steps:
S81, detecting whether the comprehensive state of a system unit of the spread spectrum tracking receiver is normal, if so, outputting an abnormal alarm signal of the system unit, and if not, outputting the abnormal alarm signal of the system unit;
s82, detecting whether the antenna receiving signal is normal, wherein the method comprises the following steps:
S821, detecting whether the signal of the access spread spectrum tracking receiver is normal, if so, outputting an access signal abnormality alarm signal, otherwise, outputting an access signal abnormality alarm signal;
s822, detecting whether a control instruction sent by the upper computer is successfully received, if so, outputting the control instruction to send out an abnormal alarm signal, and if not, outputting the control instruction to send out an abnormal alarm signal;
S823, detecting whether a radio frequency cable of the spread spectrum tracking receiver is connected to a corresponding port, ending self-detection if the radio frequency cable is normal, and outputting a radio frequency cable connection abnormality alarm signal if the radio frequency cable is abnormal.
6. The method for quickly acquiring the signal of the multi-target spread spectrum tracking receiver as claimed in claim 5, wherein: in the step S81, the determination of the comprehensive state of the system unit includes hardware detection and software detection, where the detection steps are as follows:
s811, detecting whether the working state of the spread spectrum signal processing mechanism is normal;
s812, detecting whether the working state of the broadband signal processing mechanism is normal;
S813, if the spread spectrum signal processing mechanism and the broadband signal processing mechanism are normal, performing the next step; if the working state of one of the spread spectrum signal processing mechanism and the broadband signal processing mechanism is abnormal, outputting an abnormal alarm signal corresponding to the working state of the mechanism;
S814, detecting whether the signal processing function of the FPGA is normal;
s815, detecting whether the signal processing function of the DSP is normal;
S816, if the signal processing functions of the FPGA and the DSP are normal, performing a step S92; if the signal processing function of one mechanism in the FPGA and the DSP is abnormal, outputting a signal processing function abnormality alarm signal of the corresponding mechanism.
7. The method for quickly acquiring the signal of the multi-target spread spectrum tracking receiver as claimed in claim 5, wherein: the fault self-checking method operates in a singlechip chip in a spread spectrum tracking receiver.
8. The method for quickly acquiring the signal of the multi-target spread spectrum tracking receiver as claimed in claim 7, wherein: the singlechip chip adopts STM32 series model.
9. A method for fast acquisition of a multi-target spread spectrum tracking receiver signal as claimed in any one of claims 1 to 4, characterized by: the method can be operated in an FPGA chip in a spread spectrum tracking receiver.
10. The method for quickly acquiring the signal of the multi-target spread spectrum tracking receiver as claimed in claim 9, wherein: the FPGA chip adopts model XCZU DR-2FFVG 1517I.
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