KR102376120B1 - Method of determining priority and priority determining system - Google Patents

Abstract

Disclosed are a priority determining method and a priority determining system for determining the priority of a plurality of antennas. According to an embodiment, a priority determining method comprises the steps of: preparing a lookup table generated based on reference amplitudes and reference phases corresponding to reference radar reception signals of each of a plurality of antennas, wherein the lookup table includes a lookup table address and lookup table data; receiving the radar reception signal from each of the plurality of antennas; determining an amplitude and a phase of the radar reception signal of each of the plurality of antennas; determining an amplitude relative comparison value between the plurality of antennas by relative comparison of amplitudes corresponding to each of the plurality of antennas; and determining the priority of the plurality of antennas based on the lookup table and the amplitude relative comparison value. The present invention can shorten the time required to determine the priority of antennas even when the number of antennas increases.

Description

METHOD OF DETERMINING PRIORITY AND PRIORITY DETERMINING SYSTEM

The present invention relates to a prioritization method and a prioritization system for determining priorities of a plurality of antennas.

In general, a radar device emits a radar signal using a plurality of antennas, receives a radar signal reflected from a target, and detects information such as distance, direction, and speed with a target based on the received radar signal am.

Radar signals require rapid analysis and response after detection. For this reason, a method of quickly determining the priority of a plurality of antennas for analysis of a radar signal is classified as an important technique.

Conventionally, in order to determine the priority of a plurality of antennas, a sequence for determining the priority of the plurality of antennas is used by comparing amplitudes of radar signals (ie, radar reception signals) for the plurality of antennas. This sequence is a method of accumulating a comparison counter value by comparing the amplitude of each of the plurality of antennas one-to-one with the amplitude of the other antenna. However, the conventional prioritization method has a problem in that as the number of antennas increases, the time for comparing amplitudes between antennas increases, and thus it takes a lot of time to determine the priority of the antennas.

The present invention may provide a priority determination method and a priority determination system for determining priorities of a plurality of antennas based on a lookup table for determining priorities of a plurality of antennas.

According to an embodiment of the present invention, a method for determining priorities of a plurality of antennas may be disclosed. In the method for determining priority according to an embodiment, a lookup table generated based on a reference amplitude and a reference phase corresponding to a reference radar reception signal of each of the plurality of antennas - The lookup table includes a lookup table address and lookup table data ham - to arrange; receiving a radar reception signal from each of the plurality of antennas; determining an amplitude and a phase for the radar reception signal of each of the plurality of antennas; determining an amplitude relative comparison value between the plurality of antennas by relatively comparing amplitudes corresponding to the plurality of antennas; and determining the priority of the plurality of antennas based on the lookup table and the relative amplitude comparison value.

In an embodiment, the lookup table address may be generated based on a reference amplitude relative comparison value obtained by comparing a reference amplitude corresponding to a first antenna and a reference amplitude corresponding to each of the remaining antennas with respect to the plurality of antennas.

In an embodiment, the lookup table address may be a binary representation of the reference amplitude relative comparison value of each of the plurality of antennas.

In an embodiment, the lookup table data may include first order information generated based on a reference amplitude and a reference phase of a first order corresponding to the highest order among the plurality of antennas.

In an embodiment, the first priority information may be a binary representation of an antenna corresponding to the reference amplitude and reference phase of the first priority.

In an embodiment, the lookup table data may further include second rank information generated based on a reference amplitude of a second rank lower than the first rank among the plurality of antennas.

In an embodiment, the second priority information may be a binary representation of an antenna corresponding to the reference amplitude of the second priority.

In an embodiment, the determining of the priority of the plurality of antennas based on the lookup table and the relative amplitude comparison value comprises: determining a binary number corresponding to the amplitude relative comparison value; querying the lookup table to determine a lookup table address that matches a binary number corresponding to the amplitude relative comparison value; and determining the priority of the plurality of antennas based on lookup table data corresponding to the determined lookup table address.

In one embodiment, the step of determining the priority of the plurality of antennas based on the lookup table data corresponding to the determined lookup table address is based on the binary number of the lookup table data corresponding to the determined lookup table address, The method may include determining an antenna corresponding to a first priority among the plurality of antennas.

According to an embodiment of the present disclosure, a prioritization system may be disclosed. The system for determining priorities according to an embodiment is a lookup table generated based on a reference amplitude and a reference phase corresponding to a reference radar reception signal of each of a plurality of antennas, the lookup table including a lookup table address and lookup table data - a storage unit for storing the a communication module for receiving a radar reception signal from each of the plurality of antennas; and determining the amplitude and phase of the radar reception signal of each of the plurality of antennas, and relative comparison of amplitudes corresponding to each of the plurality of antennas to determine an amplitude relative comparison value between the plurality of antennas, the lookup table and and a processor for determining priorities of the plurality of antennas based on the relative amplitude comparison values.

In an embodiment, the lookup table address may be generated based on a reference amplitude relative comparison value obtained by comparing a reference amplitude corresponding to a first antenna and a reference amplitude corresponding to each of the remaining antennas with respect to the plurality of antennas.

In an embodiment, the lookup table address may be a binary representation of the reference amplitude relative comparison value of each of the plurality of antennas.

In an embodiment, the lookup table data may include first order information generated based on a reference amplitude and a reference phase of a first order corresponding to the highest order among the plurality of antennas.

In an embodiment, the first priority information may be a binary representation of an antenna corresponding to the reference amplitude and reference phase of the first priority.

In an embodiment, the lookup table data may further include second rank information generated based on a reference amplitude of a second rank lower than the first rank among the plurality of antennas.

In an embodiment, the second priority information may be a binary representation of an antenna corresponding to the reference amplitude of the second priority.

In one embodiment, the processor determines a binary number corresponding to the amplitude relative comparison value, queries the lookup table to determine a lookup table address that matches the binary number corresponding to the amplitude relative comparison value, The priority of the plurality of antennas may be determined based on lookup table data corresponding to the determined lookup table address.

In an embodiment, the processor may determine an antenna corresponding to a first priority among the plurality of antennas based on a binary number of lookup table data corresponding to the determined lookup table address.

According to various embodiments of the present invention, the priority of the antenna from a lookup table for generating an amplitude relative comparison value by relative comparison of the amplitudes of the radar reception signals for each of a plurality of antennas and determining the priority using the amplitude relative comparison value The ranking can be determined in one cycle (or one clock). Accordingly, even if the number of antennas is increased, the time required to determine the priority of the antennas can be shortened.

1 is a block diagram schematically illustrating a prioritization system according to an embodiment of the present invention.
2 is an exemplary diagram illustrating a lookup table according to an embodiment of the present invention.
3 is a block diagram schematically illustrating the configuration of a processor according to an embodiment of the present invention.
4 is a flowchart illustrating a method of determining priorities of a plurality of antennas according to an embodiment of the present invention.
5 is a flowchart illustrating a method of determining an amplitude relative comparison value according to an embodiment of the present invention.
6 is a flowchart illustrating a method of determining a priority based on a relative amplitude comparison value according to an embodiment of the present invention.
7 is a diagram illustrating an example of determining a lookup table address and lookup table data according to an embodiment of the present invention.

Embodiments of the present invention are exemplified for the purpose of explaining the technical spirit of the present invention. The scope of the rights according to the present invention is not limited to the embodiments presented below or specific descriptions of these embodiments.

All technical and scientific terms used in the present invention, unless otherwise defined, have the meanings commonly understood by those of ordinary skill in the art to which the present invention belongs. All terms used in the present invention are selected for the purpose of more clearly describing the present invention and not to limit the scope of the present invention.

As used herein, expressions such as "comprising", "including", "having", etc. are open-ended terms connoting the possibility of including other embodiments, unless otherwise stated in the phrase or sentence in which the expression is included. (open-ended terms).

Expressions in the singular in the present invention may include the meaning of the plural unless otherwise stated, and the same applies to expressions in the singular in the claims.

Expressions such as “first” and “second” used in the present invention are used to distinguish a plurality of components from each other, and do not limit the order or importance of the components.

As used herein, the term “unit” refers to software or hardware components such as field-programmable gate arrays (FPGAs) and application specific integrated circuits (ASICs). However, "units" are not limited to hardware and software. A “unit” may be configured to reside on an addressable storage medium, or it may be configured to refresh one or more processors. Thus, as an example, "part" includes components such as software components, object-oriented software components, class components, and task components, processes, functions, attributes, procedures, subroutines, It includes segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables. Functions provided within components and “parts” may be combined into a smaller number of components and “parts” or separated into additional components and “parts”.

As used herein, the expression "based on" is used to describe one or more factors affecting the action or operation of a decision judgment, which are described in a phrase or sentence in which the expression is included, and the expression is a decision , does not exclude additional factors affecting the conduct or behavior of judgment.

In the present invention, when it is said that a certain element is "connected" or "connected" to another element, a certain element can be directly connected or connectable to another element, or a new other element It should be understood that the elements may be connected or may be connected via an element.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the same or corresponding components are assigned the same reference numerals. In addition, in the description of the embodiments below, overlapping description of the same or corresponding components may be omitted. However, even if descriptions regarding components are omitted, it is not intended that such components are not included in any embodiment.

1 is a block diagram schematically illustrating a prioritization system according to an embodiment of the present invention. Referring to FIG. 1 , the prioritization system 100 may include a storage unit 110 , a communication module 120 , and a processor 130 . In FIG. 1, reference numerals AN_1 to AN_N denote antennas.

The storage unit 110 may store a lookup table for determining priorities of the plurality of antennas AN_1 to AN_N. In an embodiment, the lookup table may be generated based on a reference amplitude and a reference phase corresponding to a reference radar reception signal of each of the plurality of antennas AN_1 to AN_N. For example, the lookup table may include a lookup table address and lookup table data.

In an embodiment, the reference radar reception signal may be a radar reception signal received from each of the plurality of antennas AN_1 to AN_N. In another embodiment, the reference radar reception signal may be a radar reception signal set by a user. For example, the reference radar reception signal may be a virtual radar reception signal set by a user to generate a lookup table.

In one embodiment, the lookup table address is a comparison value (hereinafter, "reference amplitude relative comparison") comparing the reference amplitude corresponding to the first antenna with the reference amplitude corresponding to each of the remaining antennas for the plurality of antennas AN_1 to AN_N value"). For example, the lookup table address is a reference amplitude relative comparison value obtained by comparing the reference amplitude corresponding to the first antenna AN_1 among the plurality of antennas AN_1 to AN_N and the reference amplitude corresponding to each of the remaining antennas AN_2 to AN_N, A reference amplitude relative comparison value obtained by comparing the reference amplitude corresponding to the second antenna AN_2 and the reference amplitude corresponding to each of the remaining antennas AN_1, AN_3 to AN_N, the reference amplitude corresponding to the third antenna AN_3, and the remaining antennas AN_1 , AN_2, AN_4 to AN_N), a reference amplitude relative comparison value obtained by comparing reference amplitudes corresponding to each of the reference amplitudes corresponding to the fourth antenna (AN_4) and the reference amplitudes corresponding to each of the remaining antennas (AN_1 to AN_3, AN_5 to AN_N) It may be generated based on a reference amplitude relative comparison value, such as a reference amplitude relative comparison value compared to .

In an embodiment, the lookup table address may be a binary representation of a reference amplitude relative comparison value of each of the plurality of antennas AN_1 to AN_N. For example, the lookup table address may be expressed as “00000000” to “11111111” as shown in FIG. 2 . In FIG. 2, assuming four antennas, the reference amplitude relative comparison value corresponding to the first antenna (AN_1) is 2, the reference amplitude relative comparison value corresponding to the second antenna (AN_2) is 0, and the third antenna (AN_3) When the reference amplitude relative comparison value corresponding to is 3 and the reference amplitude relative comparison value corresponding to the fourth antenna AN_4 is 1, the lookup table address may be “10001101”.

In an embodiment, the lookup table data may include first order information generated based on a reference amplitude and a reference phase of a first order corresponding to the highest order among the plurality of antennas AN_1 to AN_N. In some embodiments, the first priority information may be a binary representation of an antenna corresponding to the reference amplitude and phase of the first priority.

In an embodiment, the lookup table data may further include second rank information generated based on a reference amplitude of a second rank lower than the first rank among the plurality of antennas AN_1 to AN_N. In some embodiments, the second order information may be a binary representation of the antenna corresponding to the reference amplitude of the second order.

For example, in FIG. 2 , four antennas are assumed. If the lookup table data is “101000”, the first two digits of “10” in “101000” are the third antenna, which is the antenna corresponding to the reference amplitude of the first priority. It is a binary number representing (AN_3), the middle two digits "10" is a binary number indicating the third antenna (AN_3), which is the antenna corresponding to the reference phase of the first order, and the last two digits "00" are the second order It is a binary number indicating the first antenna (AN_1), which is the antenna corresponding to the reference amplitude.

In an embodiment, the storage 110 may include an internal memory or an external memory. The internal memory may include at least one of a volatile memory (eg, DRAM, SRAM, or SDRAM) and a non-volatile memory (eg, a flash memory, a hard drive, or a solid state drive (SSD)). The external memory may be functionally or physically connected to the prioritization system 100 through various interfaces.

The communication module 120 may be connected to the plurality of antennas AN_1 to AN_N. In an embodiment, the communication module 120 may be connected to the plurality of antennas AN_1 to AN_N by wire or wirelessly. The communication module 120 may receive a radar reception signal from each of the plurality of antennas AN_1 to AN_N.

The processor 130 may be connected to the storage 110 and the communication module 120 . The processor 130 may receive the radar reception signal from the communication module 120 and determine the priority of the plurality of antennas AN_1 to AN_N based on the received radar reception signal.

In one embodiment, the processor 130 is a central processing unit (CPU), a field-programmab1e gate array (FPGA), or an application specific integrated circuit (ASIC) capable of executing the above-described control operation or program instructions for executing the operation. ) and the like, but is not necessarily limited thereto.

3 is a block diagram schematically showing the configuration of a processor according to an embodiment of the present invention. Referring to FIG. 3 , the processor 130 may include an amplitude and phase determiner 310 , an amplitude relative comparison value determiner 320 , a lookup table address determiner 330 , and a priority determiner 340 . there is.

The amplitude and phase determiner 310 may receive a radar reception signal of each of the plurality of antennas AN_1 to AN_N from the communication module 120 . In addition, the amplitude and phase determiner 310 may determine the amplitude and phase of the received radar signal.

The amplitude relative comparison value determiner 320 may be connected to the amplitude and phase determiner 310 to receive the amplitude and phase determined by the amplitude and phase determiner 310 . Also, the amplitude relative comparison value determiner 320 may determine the relative amplitude comparison value between the plurality of antennas AN_1 to AN_N by relatively comparing the amplitudes corresponding to each of the plurality of antennas AN_1 to AN_N.

The lookup table address determiner 330 may be connected to the amplitude relative comparison value determiner 320 to receive the amplitude relative comparison value determined by the amplitude relative comparison value determiner 320 . Also, the lookup table address determiner 330 may determine the lookup table address based on the received amplitude relative comparison value. In an embodiment, the lookup table address determiner 330 may generate a lookup table address representing the relative amplitude comparison value of each of the plurality of antennas AN_1 to AN_N in binary.

The priority determiner 340 may be connected to the lookup table address determiner 330 to receive the lookup table address determined by the lookup table address determiner 330 . Also, the priority determiner 340 may determine the priorities of the plurality of antennas AN_1 to AN_N based on the received lookup table address and the lookup table stored in the storage 110 .

In an embodiment, the priority determiner 340 may determine a lookup table address representing the amplitude relative comparison value of each of the plurality of antennas AN_1 to AN_N in binary. The priority determining unit 340 searches the lookup table stored in the storage 110 to detect a lookup table address of a lookup table that matches the determined lookup table address, and retrieves lookup table data corresponding to the detected lookup table address. can be detected. The priority determiner 340 may determine priorities of the plurality of antennas AN_1 to AN_N based on the detected lookup table data. The priority determining unit 340 may output the determined amplitude and phase for each priority through the output unit.

Although process steps, method steps, algorithms, etc. are described in a sequential order in the flowcharts shown herein, such processes, methods, and algorithms may be configured to operate in any suitable order. In other words, the steps of the processes, methods, and algorithms described in various embodiments of the invention need not be performed in the order described herein. Also, although some steps are described as being performed asynchronously, in other embodiments some of these steps may be performed concurrently. Further, the exemplification of a process by description in the drawings does not imply that the exemplified process excludes other changes and modifications thereto, and that the exemplified process or any of its steps may be used in any of the various embodiments of the present invention. It is not meant to be essential to one or more, nor does it imply that the illustrated process is preferred.

4 is a flowchart illustrating a method of determining priorities of a plurality of antennas according to an embodiment of the present invention. Referring to FIG. 4 , in step S402, a lookup table including a lookup table address and lookup table data is provided based on the reference amplitude and reference phase corresponding to the reference radar reception signal of each of the plurality of antennas AN_1 to AN_N. can

In an embodiment, the processor 130 may receive a reference radar reception signal from each of the plurality of antennas AN_1 to AN_N. The processor 130 may determine a reference amplitude and a reference phase with respect to the received reference radar reception signal. The processor 130 may determine a reference amplitude relative comparison value between the plurality of antennas AN_1 to AN_N by relatively comparing reference amplitudes corresponding to each of the plurality of antennas AN_1 to AN_N. The processor 130 may generate a lookup table including a lookup table address and lookup table data based on the determined reference amplitude relative comparison value. The generated lookup table may be stored in the storage 110 .

In step S404, the processor 130 may receive the radar reception signal from the plurality of antennas (AN_1 to AN_N). In an embodiment, the processor 130 may receive a radar reception signal from each of the plurality of antennas AN_1 to AN_N through the communication module 120 .

In step S406 , the processor 130 may determine the amplitude and phase of the radar reception signal of each of the plurality of antennas AN_1 to AN_N. In an embodiment, the amplitude and phase determiner 310 of the processor 130 may determine the amplitude and phase of the received radar signal.

In operation S408 , the processor 130 may determine an amplitude relative comparison value between the plurality of antennas AN_1 to AN_N by relatively comparing amplitudes corresponding to each of the plurality of antennas AN_1 to AN_N. In an embodiment, the relative amplitude comparison value determining unit 320 of the processor 130 relatively compares the amplitudes corresponding to each of the plurality of antennas AN_1 to AN_N to compare the relative amplitudes between the plurality of antennas AN_1 to AN_N. value can be determined. A method of determining the relative amplitude comparison value will be described in detail below.

In operation S410 , the processor 130 may determine the priority of the plurality of antennas AN_1 to AN_N based on the determined amplitude relative comparison value and the lookup table stored in the storage 110 . A method of determining the priority will be described in detail below.

5 is a flowchart illustrating a method of determining an amplitude relative comparison value according to an embodiment of the present invention. In FIG. 5 , it is assumed that four antennas AN_1 to AN_4 are used for convenience of description. 5, in step S502, the processor 130 generates an amplitude corresponding to the first antenna AN_1 (hereinafter, referred to as “first antenna amplitude”) and an amplitude corresponding to the second antenna AN_2 (hereinafter, “ second antenna amplitude"), it is possible to determine whether the first antenna amplitude is equal to or greater than the second antenna amplitude.

If it is determined in step S502 that the amplitude of the first antenna is not equal to or greater than the amplitude of the second antenna, that is, it is determined that the amplitude of the first antenna is less than the amplitude of the second antenna, in step S504, the processor 130 determines the amplitude for the first antenna AN_1. The relative comparison value may be set as the first set value. In an embodiment, the first set value may be “0”.

On the other hand, if it is determined in step S502 that the first antenna amplitude is equal to or greater than the second antenna amplitude, in step S506 , the processor 130 determines that the first antenna amplitude corresponds to the third antenna AN_3 (hereinafter, “third antenna amplitude”). It can be judged whether it is abnormal or not.

If it is determined in step S506 that the first antenna amplitude is not equal to or greater than the third antenna amplitude, that is, it is determined that the first antenna amplitude is less than the third antenna amplitude, in step S508, the processor 130 determines the amplitude for the first antenna AN_1. The relative comparison value may be set as the second set value. In an embodiment, the second set value may be “1”.

Meanwhile, if it is determined in step S506 that the first antenna amplitude is equal to or greater than the third antenna amplitude, in step S510 , the processor 130 determines that the first antenna amplitude corresponds to the fourth antenna AN_4 (hereinafter, “fourth antenna amplitude”). It can be judged whether it is abnormal or not.

In step 　 S510, when the processor determines that the amplitude for the first antenna is less than the fourth antenna and the amplitude is not greater than the amplitude, that is, when the processor determines that the amplitude for the first antenna S is less than the amplitude 130, the processor determines that the amplitude for the fourth antenna is less than 130, AN The relative and comparison values can be set as the 3rd set value. In one 　 embodiment, 　 the third set value is 　 "2" days 　 number.

On the other hand, if it is determined in step S510 that the amplitude of the 1st antenna is equal to or greater than the amplitude of the 4th antenna, in step S514, the processor 130 sets the first comparison value to the set value of the antenna (AN_1) relative to the set amplitude. In one embodiment, the fourth set value may be “3”.

In step S516, the processor 130 compares the amplitude of the second antenna corresponding to the second antenna AN_2 with the amplitude of the first antenna corresponding to the first antenna AN_1 to determine whether the second antenna amplitude is equal to or greater than the first antenna amplitude. can judge

If it is determined in step S516 that the second antenna amplitude is not greater than or equal to the first antenna amplitude, that is, if it is determined that the second antenna amplitude is less than the first antenna amplitude, in step S518, the processor 130 determines the amplitude for the second antenna AN_2. The relative comparison value may be set as a first set value (“0”).

Meanwhile, if it is determined in step S516 that the second antenna amplitude is greater than or equal to the first antenna amplitude, in step S520 , the processor 130 may determine whether the second antenna amplitude is greater than or equal to the third antenna amplitude.

If it is determined in step S520 that the second antenna amplitude is not greater than or equal to the third antenna amplitude, that is, if it is determined that the second antenna amplitude is less than the third antenna amplitude, in step S522, the processor 130 determines the amplitude for the second antenna AN_2. The relative comparison value may be set as the second set value (“1”).

Meanwhile, if it is determined in step S520 that the second antenna amplitude is equal to or greater than the third antenna amplitude, in step S524, the processor 130 may determine whether the second antenna amplitude is equal to or greater than the fourth antenna amplitude.

If it is determined in step S524 that the second antenna amplitude is not greater than or equal to the fourth antenna amplitude, that is, the second antenna amplitude is less than the fourth antenna amplitude, in step S526, the processor 130 determines the amplitude for the second antenna AN_2. The relative comparison value may be set as a third set value (“2”).

On the other hand, if it is determined in step S524 that the second antenna amplitude is equal to or greater than the fourth antenna amplitude, in step S528, the processor 130 sets the amplitude relative comparison value for the second antenna AN_2 to the fourth set value (“3”). can be set.

In step S530, the processor 130 compares the third antenna amplitude corresponding to the third antenna AN_3 with the first antenna amplitude corresponding to the first antenna AN_1 to determine whether the third antenna amplitude is equal to or greater than the first antenna amplitude can judge

If it is determined in step S530 that the third antenna amplitude is not greater than or equal to the first antenna amplitude, that is, if it is determined that the third antenna amplitude is less than the first antenna amplitude, in step S532, the processor 130 determines the amplitude for the third antenna AN_3. The relative comparison value may be set as a first set value (“0”).

Meanwhile, if it is determined in step S530 that the third antenna amplitude is equal to or greater than the first antenna amplitude, in step S534, the processor 130 may determine whether the third antenna amplitude is equal to or greater than the second antenna amplitude.

If it is determined in step S534 that the third antenna amplitude is not greater than or equal to the second antenna amplitude, that is, if it is determined that the third antenna amplitude is less than the second antenna amplitude, in step S536, the processor 130 performs the steps for the third antenna AN_3. The amplitude relative comparison value may be set as the second set value (“1”).

Meanwhile, if it is determined in step S534 that the third antenna amplitude is equal to or greater than the second antenna amplitude, in step S538, the processor 130 may determine whether the third antenna amplitude is equal to or greater than the fourth antenna amplitude.

If it is determined in step S538 that the third antenna amplitude is not greater than or equal to the fourth antenna amplitude, that is, it is determined that the third antenna amplitude is less than the fourth antenna amplitude, in step S540, the processor 130 determines the amplitude for the third antenna AN_3. The relative comparison value may be set as a third set value (“2”).

On the other hand, if it is determined in step S538 that the third antenna amplitude is equal to or greater than the fourth antenna amplitude, in step S542, the processor 130 sets the amplitude relative comparison value for the third antenna AN_3 to the fourth set value (“3”). can be set.

In step S544, the processor 130 compares the fourth antenna amplitude corresponding to the fourth antenna AN_4 with the first antenna amplitude corresponding to the first antenna AN_1 to determine whether the fourth antenna amplitude is equal to or greater than the first antenna amplitude can judge

If it is determined in step S544 that the fourth antenna amplitude is not equal to or greater than the first antenna amplitude, that is, it is determined that the fourth antenna amplitude is less than the first antenna amplitude, in step S546, the processor 130 determines the amplitude for the fourth antenna AN_3. The relative comparison value may be set as a first set value (“0”).

Meanwhile, if it is determined in step S544 that the fourth antenna amplitude is equal to or greater than the first antenna amplitude, in step S548, the processor 130 may determine whether the fourth antenna amplitude is equal to or greater than the second antenna amplitude.

If it is determined in step S548 that the fourth antenna amplitude is not greater than or equal to the second antenna amplitude, that is, if it is determined that the fourth antenna amplitude is less than the second antenna amplitude, in step S550, the processor 130 determines the amplitude for the fourth antenna AN_3. The relative comparison value may be set as the second set value (“1”).

Meanwhile, if it is determined in step S548 that the fourth antenna amplitude is equal to or greater than the second antenna amplitude, in step S552, the processor 130 may determine whether the fourth antenna amplitude is equal to or greater than the third antenna amplitude.

If it is determined in step S552 that the fourth antenna amplitude is not equal to or greater than the third antenna amplitude, that is, if it is determined that the fourth antenna amplitude is less than the third antenna amplitude, in step S554, the processor 130 determines the amplitude for the fourth antenna AN_4 The relative comparison value may be set as a third set value (“2”).

On the other hand, if it is determined in step S552 that the fourth antenna amplitude is equal to or greater than the third antenna amplitude, in step S556, the processor 130 sets the relative amplitude comparison value for the fourth antenna AN_4 as a fourth set value (“3”). can be set.

6 is a flowchart illustrating a method of determining a priority based on a relative amplitude comparison value according to an embodiment of the present invention. In FIG. 6 , it is assumed that four antennas AN_1 to AN_4 are used for convenience of description. Referring to FIG. 6 , in step S602 , the processor 130 may generate a lookup table address based on relative amplitude comparison values for each of the first to fourth antennas AN_1 to AN_4 . In an embodiment, the priority determiner 340 of the processor 130 may generate a lookup table address representing the relative amplitude comparison value for each of the first to fourth antennas AN_1 to AN_4 in binary.

For example, the relative amplitude comparison value for the first antenna (AN_1) is 2, the amplitude relative comparison value for the second antenna (AN_2) is 0, the amplitude relative comparison value for the third antenna (AN_3) is 3, and the fourth When the relative amplitude comparison value for the antenna AN_4 is 2, the priority determiner 340 may generate a lookup table address of “10001110”.

In step S604 , the processor 130 inquires the lookup table stored in the storage 110 to determine a lookup table address that matches the generated lookup table address. In an embodiment, the priority determining unit 340 of the processor 130 may determine a lookup table address matching the generated lookup table address by inquiring the lookup table stored in the storage unit 110 . For example, the priority determiner 340 may determine a lookup table address that matches the lookup table address of “10001110” in the lookup table stored in the storage 110 .

In operation S606 , the processor 130 may determine lookup table data corresponding to the determined lookup table address based on the lookup table stored in the storage 110 . In an embodiment, the priority determiner 340 of the processor 130 may determine lookup table data corresponding to the determined lookup table address from the lookup table stored in the storage 110 . For example, as shown in FIG. 7 , the priority determiner 340 may determine lookup table data “101000” corresponding to the determined lookup table address “10001110”.

In step S608, the processor 130 may determine the priority of the antenna based on the determined lookup table data. In an embodiment, the priority determiner 340 of the processor 130 may determine an antenna corresponding to a first priority among the first to fourth antennas AN_1 to AN_N based on the determined lookup table data. For example, the priority determiner 340 may determine the third antenna AN_3 as the antenna corresponding to the first priority based on the lookup table data “101000”. Accordingly, the priority determiner 340 may output the amplitude and phase corresponding to the third antenna AN_3 as the amplitude and phase of the first priority.

Optionally, the priority determiner 340 may determine the antenna corresponding to the second priority among the first to fourth antennas AN_1 to AN_N based on the determined lookup table data. For example, the priority determiner 340 may determine the first antenna AN_1 as the antenna corresponding to the second priority based on the lookup table data “101000”. Accordingly, the priority determiner 340 may output the amplitude and phase corresponding to the first antenna AN_1 as the amplitude and phase of the second priority.

Although the above method has been described through specific embodiments, the above method may also be implemented as computer readable code on a computer readable recording medium. The computer-readable recording medium includes all types of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage device. In addition, the computer-readable recording medium is distributed in a computer system connected to a network, so that the computer-readable code can be stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for implementing the above embodiments can be easily inferred by programmers in the technical field to which the present invention pertains.

Although the technical spirit of the present invention has been described by the examples shown in some embodiments and the accompanying drawings above, it does not depart from the technical spirit and scope of the present invention that can be understood by those of ordinary skill in the art to which the present invention pertains. It should be understood that various substitutions, modifications, and alterations within the scope may be made. Further, such substitutions, modifications, and alterations are intended to fall within the scope of the appended claims.

100: priority determiner, 110: storage, 120: communication module, 130: processor, 310: amplitude and phase determiner, 320: amplitude relative comparison value determiner, 330: lookup table address determiner, 340: priority decision unit, AN_1 to AN_N: antenna

Claims (18)

A method of determining the priority of a plurality of antennas, comprising:
providing a lookup table generated based on a reference amplitude and a reference phase corresponding to a reference radar reception signal of each of the plurality of antennas, the lookup table including a lookup table address and lookup table data;
receiving a radar reception signal from each of the plurality of antennas;
determining an amplitude and a phase for the radar reception signal of each of the plurality of antennas;
determining an amplitude relative comparison value between the plurality of antennas by relatively comparing amplitudes corresponding to the plurality of antennas; and
determining the priority of the plurality of antennas based on the lookup table and the relative amplitude comparison value;
The lookup table address is generated based on a reference amplitude relative comparison value obtained by comparing a reference amplitude corresponding to a first antenna with a reference amplitude corresponding to each of the remaining antennas for the plurality of antennas;
The lookup table address is a binary representation of the reference amplitude relative comparison value of each of the plurality of antennas, the priority determining method. delete delete The method of claim 1 , wherein the lookup table data includes first priority information generated based on a reference amplitude and a reference phase of a first priority corresponding to the highest priority among the plurality of antennas. The method of claim 4, wherein the first priority information represents an antenna corresponding to a reference amplitude and a reference phase of the first priority in binary. The method of claim 5 , wherein the lookup table data further includes second priority information generated based on a reference amplitude of a second priority lower than the first priority among the plurality of antennas. The method of claim 6 , wherein the second priority information represents an antenna corresponding to the reference amplitude of the second priority in binary. The method of claim 5, wherein the determining of the priority of the plurality of antennas based on the lookup table and the relative amplitude comparison value comprises:
determining a binary number corresponding to the amplitude relative comparison value;
querying the lookup table to determine a lookup table address that matches a binary number corresponding to the amplitude relative comparison value; and
determining priorities of the plurality of antennas based on lookup table data corresponding to the determined lookup table addresses;
Prioritization method comprising. The method of claim 8, wherein the determining of priorities of the plurality of antennas based on lookup table data corresponding to the determined lookup table address comprises:
determining an antenna corresponding to a first priority among the plurality of antennas based on a binary number of lookup table data corresponding to the determined lookup table address;
Prioritization method comprising. A prioritization system comprising:
a storage unit for storing a lookup table generated based on a reference amplitude and a reference phase corresponding to a reference radar reception signal of each of the plurality of antennas, the lookup table including a lookup table address and lookup table data;
a communication module for receiving a radar reception signal from each of the plurality of antennas; and
determining an amplitude and a phase of the radar reception signal of each of the plurality of antennas, and determining an amplitude relative comparison value between the plurality of antennas by relatively comparing amplitudes corresponding to each of the plurality of antennas, the lookup table and the a processor for determining priorities of the plurality of antennas based on the relative amplitude comparison values;
The lookup table address is generated based on a reference amplitude relative comparison value obtained by comparing a reference amplitude corresponding to a first antenna with a reference amplitude corresponding to each of the remaining antennas for the plurality of antennas;
The lookup table address is a binary representation of the reference amplitude relative comparison value of each of the plurality of antennas. delete delete The system of claim 10 , wherein the lookup table data includes first priority information generated based on a reference amplitude and a reference phase of a first priority corresponding to the highest priority among the plurality of antennas. The system of claim 13 , wherein the first priority information represents an antenna corresponding to a reference amplitude and a reference phase of the first priority in binary. The system of claim 14 , wherein the lookup table data further includes second priority information generated based on a reference amplitude of a second priority lower than the first priority among the plurality of antennas. The system of claim 15 , wherein the second priority information represents an antenna corresponding to the reference amplitude of the second priority in binary. 15. The method of claim 14, wherein the processor,
Determining a binary number corresponding to the amplitude relative comparison value,
query the lookup table to determine a lookup table address that matches a binary number corresponding to the amplitude relative comparison value;
A system for determining priorities of the plurality of antennas based on lookup table data corresponding to the determined lookup table addresses. The system of claim 17 , wherein the processor determines an antenna corresponding to a first priority among the plurality of antennas based on a binary number of lookup table data corresponding to the determined lookup table address.

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