序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
181 JPH0315996B2 - JP1670683 1983-02-02 JPH0315996B2 1991-03-04 KONO AKIO; HIRAOKA TSUTOMU; TSUNASAKI MASARU
182 JPH03500451A - JP50930688 1988-09-16 JPH03500451A 1991-01-31
183 Method and device for synthesizing waveform JP7392687 1987-03-27 JPS6324183A 1988-02-01 DEIBUITSUDO JIYON GANTON; RUUSHII JIEEN MANINGU
184 Apparatus for detecting embedded object JP11994184 1984-06-13 JPS61773A 1986-01-06 MICHIGUCHI YOSHIHIRO
PURPOSE:To achieve the imaging of the position of an embedded object at a high speed with high accuracy by shortening the processing time of a position detector, by operating the curve corresponding to the inclination of the locus curve of the embedded object obtained with the scanning of a radio wave emitter and a reflected wave detector and increasing the memory content to said curve to display the result thereof. CONSTITUTION:The signal from an oscillator 10 is guided to an antenna 12 through a circulator 11 to emit a radio wave. The reflected wave from the embedded object 2 under the ground 1 is detected by the antenna 12 to be inputted to an operator 15 through the circulator 11, an amplifier 13 and a sampling apparatus 14. The output of the scanning position detector 16 of the antenna 12 is inputted to the operator 15. CPU15 calculates the tangential line of the locus curve of the embedded object to calculate the inclination thereof and calculates reflected light paths to calculate the position of the object as the intersecting point of one or more of reflected light paths. By performing this calculation at plural points, the memory content at the position where the object is present is increased. Said memory content is modulated in its intensity and displayed on a display device 17 and the position of the object is discriminated from the image thereof.
185 Antenna for burried object searching rader JP11766584 1984-06-08 JPS60260879A 1985-12-24 TANAKA HIROAKI; MATSUURA MASAYUKI; FURUSAWA HAJIME
PURPOSE:To remove unnecessary reflection waveforms from the ground surface, etc. and to search a burried object underground by arranging two receiving antennas on both sides of a transmitting antenna, and signal-processing differentially coupling the two receiving antennas. CONSTITUTION:Transmitting signals are sent from a transmitter 4 to the transmitting antenna 1 based on control from a controlling device 8, and radio waves of specified output and frequency are transmitted. Transmitted radio waves are reflected on hitting the ground surface and a gas conduit 3, return as echoes, and received by receiving antennas 2 and 2'. Received radio waves pass through the differential coupling 9 through receiving lines 10, 10', are subjected to signal processing by a signal processing device 6, and displayed on a display recording device 7. As reflection waveform from the ground surface is made symmetric vertically by the two receiving antennas, canceled at the differential coupling 9, and only reflection waveforms from the objective burried object 3 are subjected to signal processing.
186 Searching method of underground buried pipe JP10144284 1984-05-18 JPS60244885A 1985-12-04 FURUSAWA HAJIME; HOSOHARA YASUHARU
PURPOSE:To identify the material and diameter of a long-sized buried body by transmitting and receiving a signal over movement on the ground while an antenna is rotated horizontally, and calculating a received signal which varies according to the relation between the burying direction of the buried pipe and the direction of the antenna. CONSTITUTION:The burying position of the buried pipe is detected by a pulse radar system and then the antenna 1 is rotated right over the buried pipe. Then, a signal E when the transmission and reception combined type or transmission and reception separated parallel type antenna 1 becomes parallel to the burying direction of the buried pipe and a code E' when the antenna 1 becomes perpendicular to the burying direction are inputted and their levels are compared with each other to decide on a metallic pipe when E>E' or nonmetallic pipe when E<E'. Then, the diameter is from an arithmetic expression in the former case.
187 Underground prospecting radar JP9350384 1984-05-08 JPS60235078A 1985-11-21 MINOWA YOSHIFUMI; SANEMORI AKIROU
PURPOSE:To prospect an embedded article, by receiving the reflected wave from the intersecting point of the emitting angle of a transmitting antenna and the watching angle of a receiving antenna present at a specific underground depth position. CONSTITUTION:The radio wave transmitted from a transmitter 1 is emitted to a range of a radio wave emitting angle theta1 from a transmitting antenna 2 and a part of a transmitting wave is reflected from underground foreign matter but only the radio wave, which is within the watching angle theta2 of a receiving antenna 3, of the reflected wave is received by the receiving antenna 3. The received radio wave is processed by receiving and processing circuits 6, 7 and only the reflected wave from the intersecting point of the radio wave emitting angle theta1 and the watching angle theta2 in a region Z specified in an underground depth is sent to a receiver 4. The opening and closing times of a switch element 6 is controlled by a gate signal generator 7 and, when the time opening the element is measured from the transmitting time and present between (t) and t+DELTAt, the radio wave reaching the receiver 4 comprises only the reflected wave O from the target point of a depth Z. Hereupon, the receiving or transmitting antenna is moved to increase the distance (d) therebetween while the time (t) opening the element 6 is delayed and the magnitude of the reflected wave of a minute depth portion DELTAZ is successively measured and an embedded article can be located from the distribution of the reflected wave.
188 Position detecting means of underground buried body JP8282884 1984-04-26 JPS60227187A 1985-11-12 KOYANAGI YASUO; HOSOE TOSHIAKI; HOUJIYOU HIROYUKI; NAKAMURA HIROSHI
PURPOSE:To easily discriminate between a long-sized body and dirt and to detect the position of an underground buried body with high precision by processing signals from plural receiving antennas. CONSTITUTION:The receiving antennas 2 and 3 are arranged at a specific interval in the lengthwise direction of a pipe 53 in the ground. A transmitting antenna 1 is excited with the output of a transmitter 10 and a transmitted electromagnetic wave is reflected by the pipe 53 and dirt 54 in the ground, and its reflected wave is received by the antennas 2 and 3, whose received signals are sent to an arithmetic processor 22 through receivers 11 and 12, a cable 5, and a preamplifier 21. The processor 22 decreases the intensity of a signal from the dirt 54 to discriminate the signal from the signal from the pipe 53, and the output based upon the signal from the pipe 53 is supplied to an image converting device 26 and a data recorder 25.
189 Apparatus for probing embedded pipe JP7561884 1984-04-14 JPS60219577A 1985-11-02 UENO KEIICHI; OOSUMI NORIYOSHI
PURPOSE:To enable probing with good resolving power, by collecting a reflected signal on the basis of a wide band inpulse signal by a circular polarized wave antenna and compensating the marked distortion of the wave form of the circular polarized wave antenna by signal processing. CONSTITUTION:The wide band electric signal generator from a transmitter 16 is converted to a circular polarized wave signal 19 through a circular polarized wave antenna 18 to be transmitted into the ground. The signal 19 reaches an object 20 and reflected or scattered to be detected through a circular polarized wave antenna 23 and filtered in a receiver 24 and accumulated in memory 25 while receives A/D conversion. The signals accumulated in the memory 25 are successively read and receive pulse compression by a wave form shaping part 26. A position coordinates signal is generated by a mechanism 22 for moving an antenna and received by a receiver 24 to be stored in the memory 25 corresponding to the reflected signal from the ground. The wave forms by pulse compression are arranged in the order of position coordinates and displayed on CRT27 in a cross-sectional area shape or stored in a data recorder 28 for the purpose of high order signal processing or analytical display.
190 Method and apparatus for discriminating object to be detected JP6501384 1984-03-30 JPS60207085A 1985-10-18 MICHIGUCHI YOSHIHIRO; TAKAHASHI FUMINOBU; HIRAMOTO KAZUO; NISHI SEIJI; SONODA SHINJI
PURPOSE: To perform the discrimination of material quality regardless of the shape of an object to be detected or the area of a reflective surface, by projecting a radio wave to the object to be detected and receiving the reflected wave to extract reflection phase information peculiar to the object to be detected. CONSTITUTION: The signal from an oscillator 3 is supplied to an antenna 2 through a duplexer 4 to be converted to a radio wave which is, in turn, incident to an embedded medium and reflected from an embedded object 1 to reach the antenna 2. The reflected signal is sent to an amplifier 5 through the duplexer 4 and receives phase discrimination by a phase discriminator 6. This phase discrimination signal is sent to a processing apparatus 7 and processed along with the signal from an antenna position detection apparatus 8 and the position and quality of the embedded object 1 are displayed by a display apparatus 9. By utilizing that the phase difference of the incident wave and the reflected wave is different at every material quality of the embedded object 1, the material quality of the embedded object is certainly discriminated regardless of the shape and size of the embedded object and displayed along with positional information. COPYRIGHT: (C)1985,JPO&Japio
191 Radar equipment JP24768983 1983-12-29 JPS60142285A 1985-07-27 HIRAMOTO KAZUO
PURPOSE: To detect and calculate with high accuracy a range, a speed, etc. of an object to be searched, even in case substance and a composition ratio of a medium are unknown, by calculating a range, etc. by using plural frequencies. CONSTITUTION: A reflected electromagnetic wave from a buried object under the ground, etc. being at a range (d) from an antenna 8 is received by a receiver 5 through a transmission and reception switching machine 4. When three simultaneous equations of the expression are resolved by an operating device 6 basing on three receiving signals of a different angular frequency ω i, the range (d) is determined and displayed on a CRT7 even in case a substance, a composition, etc. of a medium are unknown. A moving speed of the object is also determined in the same way. In the expression, ε and δ are constants which are different in accordance with the medium. COPYRIGHT: (C)1985,JPO&Japio
192 Signal processing method of underground search radar JP1670683 1983-02-02 JPS59142491A 1984-08-15 KOUNO AKIO; HIRAOKA TSUTOMU; TSUNASAKI MASARU
PURPOSE:To detect exactly the position of a target under the ground by moving a transmitting and a receiving antennas in one direction along the surface of the earth, deriving a mutual correlative signal in many positions on the surface of the earth, and adding these signals. CONSTITUTION:A reference waveform is generated by considering the ripple of a waveform by a characteristic of an antenna 2 itself, and the mutual correlation of this reference waveform and a measured waveform is derived, to obtain a mutual correlative signal which has a peak of one level at the time corresponding to the transmitting and receiving position and the range of a target 4 by regarding the transmission time as the reference time, and the preceding and succeeding parts at the other level. The converted value of this correlative signal is distributed equally onto the circumference around a position corresponding to the surface of the earth of its signal having a radius of a range extending from said position to a place where its converted value exists, and it is added as to each mutual correlative signal. In this way, the sectional image of a distinct target 4 is obtained, and the position of the target under the ground can be detected exactly.
193 Radar for detecting underground buried object JP16662482 1982-09-27 JPS5957186A 1984-04-02 MIYAMOTO HIDEO
PURPOSE:To determine a point right above a buried object by receiving an echo with two receiving antennas switching them alternately to determine whether an object to be detected is buried on the right or left from a certain point. CONSTITUTION:Single pulse is transmitted into the ground from a transmission antenna 1 is reflected by a buried object 5 and received with receiving antennas 2 and 3 switching them alternately to obtain echo information on propagation time from the transmission to the reception of the pulse radio wave. It is so arranged that intervals d1 and d2 between antennas 1, 2 and 3 can be widened easily with a proper mechanism. When virtually the same echo information is obtained by switching the antennas 2 and 3, the buried object 5 is located right below the antenna 1.
194 JPS59793B2 - JP10435380 1980-07-31 JPS59793B2 1984-01-09 WATABE KAZUO
195 Detection for position of object buried in ground JP8063882 1982-05-13 JPS58198783A 1983-11-18 KOYANAGI YAYOI; YAMADA TAKEO; HOUJIYOU HIROYUKI; NAGAMUNE AKIO
PURPOSE:To enhance the reception intensity of a reflected wave from a buried object, by providing a radio wave-transmissive plate on the ground surface, and making a radio wave from a transmitting antenna incident into the ground efficiently. CONSTITUTION:A radio wave-transmissive plate 21 is laid on a ground surface 13 below which an object 12 buried in the ground is buried. A transmitting/receiving antenna 11 is arranged so as to face this radio wave-tranmissive plate 21. The antenna 11 is connected to a transmitter 23 and a receiver 24 through a directional coupler 22. The transmitter 23 outputs a pulse signal having a pulse width of about several nanoseconds to the antenna 11 in a pulse repeating period of several 10sk Hz. The receiver 24 converts the reflected pulse signal, which is received by the antenna 11, to a low frequency signal and outputs the low frequency signal to a picture converting device 25. The picture converting device 25 converts the inputted reflected signal to a white-and-black variable density picture and output it to a television monitor 26 and a hard copy device 27. In respect to material of the radio wave-transmissive plate 21, material whose value of the dielectric constant can be changed is desirable, and it is necessary that the electric conductivity is low.
196 Detection for position of object buried in ground JP8063782 1982-05-13 JPS58198782A 1983-11-18 KOYANAGI YASUO; YAMADA TAKEO; HOUJIYOU HIROYUKI; NAGAMUNE AKIO
PURPOSE:To prevent the mixture of unnecessary noise, by standing a radio wave screening plate between a transmitting antenna and a receiving antenna to screen a reflected wave from boundary faces of respective strata. CONSTITUTION:The pluse signal radiated from a transmitting antenna 15 by the operation of a transmitter 17 reaches a buried object 11 while being reflected partially by a ground suface 14 and the boundary face between the first layer 12 and the second layer 13 and is reflected by the surface of the buried object 11. A reflected wave on the ground surface 14 and the boundary face are screened by a radio wave screening plate 23 and are stopped from reaching a receiving antenna 16. A reflected pulse signal from the buried object 11 is discharged to the ground surface on the receiving antenna 16 side of the standing position of the radio wave screening plate 23 and is received by the receiving antenna 16 and is converted to a low frequency signal by a receiver 18 and is displayed on a television monitor 20 through a picture converting device 19.
197 JPS5090502A - JP13893774 1974-12-05 JPS5090502A 1975-07-19
198 지표 투과 레이더 탐사 시스템 KR1020180042229 2018-04-11 KR101895835B1 2018-09-06 강기영; 김창헌; 박성수
본발명은지표투과레이더탐사시스템에관한것으로서, 보다상세하게는정보송수신부에서정보수집부가수집한정보를처리하는정보처리부와이를표시하는정보표시부로구성되되, 동공탐사용차의전방, 측면, 후방단부에설치되어관로및 동공의위치정보관련지면상의전방, 측면지형물및 지면영상을동시에취득하는렌즈어댑터및 디지털카메라가구비된영상취득부; 상기동공탐사용차의하부에설치되어관로및 동공정보를획득하는지표투과레이더; 상기지표투과레이더의일측전방에설치되어상기동공탐사용차가관로상부면을주행하는경우상기동공탐사용차의주행거리및 주행속도를측정하는엔코더; 상기영상취득부에서획득한영상자료와상기지표투과레이더에서획득한전자파자료를수집및 저장하는진동주파수특징추출모듈을통해수집된자료를이용하여영상을합성, 편집, 및분석하는조사분석프로그램이내장된모듈기반지능형영상분석장치;를포함하는지표투과레이더탐사시스템에관한것이다.
199 안테나 혼선을 사용한 대지 관통 레이더 통신을 위한 시스템 및 방법 KR1020147000368 2011-06-09 KR101828238B1 2018-02-13 시미세빅네벤; 자가나탄아런; 몬트고메리제임스엘.; 올슨자이에이치.
매설된물체(26)를검출하기위한트랜스듀서(40, 40')를갖는물체검출시스템(24)이개시되어있다. 트랜스듀서는강인한, 전자기관통구조물(42) 내에봉입된다.
200 레이더 신호 처리 장치 및 레이더 신호 처리 방법 KR1020140017493 2014-02-14 KR101769785B1 2017-08-21 김동규
본발명에따른레이더신호처리장치는, 채널주파수에기초하여복수의기저대역신호들을복수의분할대역침투신호들로대상물체에방사하는송신부, 대상물체로부터반사된복수의반사신호들을수신하여통합대역응답신호로구성하는수신부, 및복수의분할대역침투신호들중 인접하는분할대역침투신호들의적어도일부의대역이중첩되도록채널주파수를설정하는제어부를포함한다.
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