[특허]Positioning system with intentional multi-path signal

Navcom Technology, Inc.

검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
검색연산자

검색도움말
검색연산자	기능	검색시 예
()	우선순위가 가장 높은 연산자	예1) (나노 (기계 \| machine))
공백	두 개의 검색어(식)을 모두 포함하고 있는 문서 검색	예1) (나노 기계) 예2) 나노 장영실
\|	두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색	예1) (줄기세포 \| 면역) 예2) 줄기세포 \| 장영실
!	NOT 이후에 있는 검색어가 포함된 문서는 제외	예1) (황금 !백금) 예2) !image
*	검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색	예) semi*
""	따옴표 내의 구문과 완전히 일치하는 문서만 검색	예) "Transform and Quantization"

과학기술 지식인프라 ScienceON

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison, Kafe, Webinar 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Positioning system with intentional multi-path signal

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-013/08 G01S-013/00 H01Q-015/00
미국특허분류(USC)	342/146; 342/005; 342/126; 342/188
출원번호	US-0103950 (2005-04-11)
등록번호	US-7315275 (2008-01-01)
발명자 / 주소	Stephens,Scott Adam
출원인 / 주소	Navcom Technology, Inc.
대리인 / 주소	Morgan, Lewis & Bockius LLP
인용정보	피인용 횟수 : 8 인용 특허 : 32

초록
▼

A positioning system includes a device, having an antenna and a reflector with a known position proximate to the antenna, that transmits at least an electromagnetic pulse having a carrier signal frequency. The device receives a return signal over a period of time, wherein the return signal includes a return pulse from an object within a radar detection area of the device and at least one multi-path pulse. The device processes the return signal so as to isolate the return pulse and the at least one multi-path pulse from the return signal. The device determines a range from the device to the object and the position of the device relative to the object. The range is determined in accordance with a time of arrival of the return pulse and the position is determined in accordance with a time of arrival of the at least one multi-path pulse.

대표
청구항
▼

What is claimed is: 1. A method of determining the position of a device, comprising: transmitting at least an electromagnetic pulse having a carrier signal frequency from the device; receiving a return signal over a period of time, wherein the return signal includes a return pulse from an object within a radar detection area of the device and at least one multi-path pulse associated with a reflector at a known position relative to and proximate to the device; wherein the at least one multi-path pulse comprises at least one pulse that has been generated by both the object and the reflector; and processing the return signal so as to isolate the return pulse and the at least one multi-path pulse from the return signal and to determine a range from the device to the object and the position of the device relative to the object, including determining the range in accordance with a time of arrival of the return pulse and determining the position in accordance with a time of arrival of the at least one multi-path pulse. 2. The method of claim 1, wherein the pulse during transmitting is polarized and the receiving preferentially receives the return signal having the polarization. 3. The method of claim 2, wherein the polarization is selected from the group consisting of linear polarization, elliptical polarization, right-hand elliptical polarization, left-hand elliptical polarization, right-hand circular polarization and left-hand circular polarization. 4. The method of claim 1, further comprising using a same polarized antenna for both the transmitting and receiving. 5. The method of claim 1, wherein the object is a passive reflector. 6. The method of claim 1, wherein the object is an active landmark. 7. The method of claim 1, wherein the reflector is an active reflector. 8. The method of claim 1, wherein the reflector is a passive reflector. 9. The method of claim 1, further comprising: moving the device at a velocity in a particular direction while performing the receiving; detecting a Doppler shift in the return pulse in the return signal; and determining an angle between the particular direction and a straight line between the device and the object in accordance with the detected Doppler shift. 10. A positioning system, comprising a device, including an antenna and a reflector with a known position relative to and proximate to the antenna, configured to transmit at least an electromagnetic pulse having a carrier frequency, to receive a return signal over a period of time in a receiver, the return signal including a return pulse from an object within a radar detection area of the device and at least one multi-path pulse associated with the reflector, wherein the at least one multi-path pulse comprises at least one pulse that has been generated by both the object and the reflector, to process the return signal so as to isolate the return pulse and the at least one multi-path pulse from the return signal, and to determine a range from the device to the object and a position of the device relative to the object, wherein the range is determined in accordance with a time of arrival of the return pulse and the position is determined in accordance with a time of arrival of the at least one multi-path pulse. 11. The system of claim 10, wherein the transmitted pulse is polarized and the device is configured to preferentially receive the return signal having the polarization. 12. The system of claim 11, wherein the polarization is selected from the group consisting of linear polarization, elliptical polarization, right-hand elliptical polarization, left-hand elliptical polarization, right-hand circular polarization and left-hand circular polarization. 13. The system of claim 10, wherein the antenna is configured to both preferentially transmit the pulse having the polarization and to preferentially receive the return signal having the polarization. 14. The system of claim 10, wherein the antenna is selected from the group consisting of linearly polarized and circularly polarized. 15. The system of claim 10, wherein the antenna is selected from the group consisting of a bi-cone, a bi-cone with a ground plane, a helix, horizontal omni-directional, omni-directional, hemi-directional and isotropic. 16. The system of claim 10, the device further including: a processor; a memory; and at least one program module, stored in the memory and executed by the processor, the at least one program module containing instructions for: processing the return signal so as to isolate the return pulse and the at least one multi-path pulse from the return signal; and determining the range from the device to the object and the position of the device relative to the object; wherein the range is determined in accordance with the time of arrival of the return pulse and the position is determined in accordance with the time of arrival of the at least one multi-path pulse. 17. The system of claim 10, the device further including: a vehicle locomotion mechanism for moving the device in a particular direction, at a velocity; a processor; a memory; and at least one program module, stored in the memory and executed by the processor, the at least one program module containing instructions for: detecting a Doppler shift in the return pulse in the return signal; and determining an angle between the particular direction and a straight line between the device and the object in accordance with the detected Doppler shift. 18. The system of claim 10, the object further including a mechanism for moving the object in a particular direction, at a velocity; and the device includes: a processor; a memory; and at least one program module, stored in the memory and executed by the processor, the at least one program module containing instructions for: detecting a Doppler shift in the return pulse in the return signal; and determining an angle between the particular direction and a straight line between the device and the object in accordance with the detected Doppler shift. 19. The system of claim 10, wherein the object is a passive reflector. 20. The system of claim 10, wherein the object is an active landmark. 21. The system of claim 10, wherein the reflector is an active reflector. 22. The system of claim 10, wherein the reflector is a passive reflector. 23. A positioning system, including device means comprising transmit means for transmitting at least an electromagnetic pulse having a carrier frequency, reflect means at a known position relative to and proximate to the transmit means for generating at least one multi-path electromagnetic pulse, and receive means for receiving a return signal over a period of time, the return signal including a return pulse from an object within a radar detection area of the device means and at least one multi-path pulse produced by the device means, wherein the at least one multi-path pulse comprises at least one pulse that has been generated by both the object and the reflect means, signal processing means for processing the return signal so as to isolate the return pulse and the at least one multi-path pulse from the return signal, and range determination means to determine a range from the device means to the object and a position of the device means relative to the object, wherein the range is determined in accordance with a time of arrival of the return pulse and the position is determined in accordance with a time of arrival of the at least one multi-path pulse.

이 특허에 인용된 특허 (32)

이 특허를 인용한 특허 피인용횟수: 8

IPC 상위 출원인

내보내기

상세정보
내보내기 구분	파일저장 인쇄 메일전송
구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	> 총 건의 자료가 검색되었습니다. > 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) > 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. > 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) > 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오 > ~ > Text(ASCII format) Excel format

과학기술 지식인프라 ScienceON

ScienceON Chatbot

연합인증

특허 상세정보

Positioning system with intentional multi-path signal

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (32)

이 특허를 인용한 특허 피인용횟수: 8

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

연합인증

특허 상세정보

Positioning system with intentional multi-path signal

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (32)

이 특허를 인용한 특허 피인용횟수: 8

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼