序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
81 Range tracking radar JP10069984 1984-05-21 JPS60244881A 1985-12-04 SUZUKI KEIZOU
PURPOSE:To obtain the range tracking radar which has superior resistance to radio wave disturbance, high sensitivity, and high secrecy by imposing two phase modulation of 0 and pi upon a transmitted radio wave and irradiating a pulse wave, and receiving its reflected signal from a target at arrival time different from the transmission time. CONSTITUTION:The output 20 of a signal generator 75 is phase-modulated by a phase modulator 71 with the output 15 of a transmission source 59 to obtain an output 16 of two-phase modulation with a pi-radian phase difference. On the other hand, a pulse output 22 is generated from the output 46 of a range signal generator 76 so that the arrival time of the reflected wave from the target is different from the transmission time of the transmission output 18, and a pulse modulator 60 imposes pulse modulation on the output 16 to irradiate an output 18 from a transmitting antenna 50 to the target.
82 Radar equipment JP2017584 1984-02-07 JPS60164275A 1985-08-27 IIJIMA NOBUYUKI
PURPOSE:To enable a stable tracking regardless of the mixing of a jamming wave by detecting the mixing of the jamming wave through comparison between the target video amplitude value at the center of a tracking gate and that at other positions to control the gate timing by the results. CONSTITUTION:A digitized target video signal G is generated from a radar echo signal to be tracked, inputted into a first half area calculating circuit 10 and a second half area calculating circuit 11 to calculate areas (a) and (b) and the positional deviation between a tracking gate H and the center of tracking target video is detected with an area discrimination circuit from the difference between the areas (a) and (b). On the other hand, the amplitude value l of the target video signal at the center of the tracking gate is compared with the amplitude value (m) thereof at the position three-fourth from the front end of the tracking gate and when the amplitude value (m) exceeds the amplitude value l, a jamming signal is determined to be mixed into the tracking gate. Then, based on the positional deviation information, the center of the tracking gate is controlled to position at the point a quarter from the front end of the signal G.
83 Radar equipment JP14992883 1983-08-17 JPS6040982A 1985-03-04 KONDOU NATSUKI
PURPOSE:To prevent the interruption of distance tracking, by changing over PRF directly before the transmission period of radar is timewise coincided with a receiving pulse signal. CONSTITUTION:The first PRF transmission pulse from a transmitter 1 is converted to a demodulated signal through a transmission and reception change- over device 2, an antenna 3, an object, the change-over device 2, a gate circuit 4 and a receiver 5 and the demodulated signal is inputted to a distance tracking circuit 6. The circuit 6 sends out the distance R of the object calculated from the apparent range delay time T of the object and the real range delay time Td thereof to a PRF change-over device 7. When the change-over device 7 detects a state directly before a receiving pulse signal is timewise coincided with the transmission period of radar, said device 7 imparts an order for performing transmission by second PRF to the transmitter 1. Second PRF is prescribed by formula I to the approaching object and by formula II to the receding object. In the formulae I , II, FP is a second PRF value and N is a positive integer.
84 Distance acquisition and tracking device JP3960983 1983-03-09 JPS59163583A 1984-09-14 KIMURA YASUJI
PURPOSE:To obtain the distance acquisition and tracking device of a conbined full digital type having a wide error voltage linear range and an acquisition and leading-in circuit by constituting to make a distance discriminator is unnecessary, and to obtain a tracking distance error by an operation in a computer. CONSTITUTION:A video signal exceeding an average noise level 22 is detected by an analog comparator 19, and on the other hand, a video signal 1 is compared with a threshold level VT 25 by an analog comparator 18 to obtain a quantized video 26, and is brought to a gate by a distance gate 28 in a gate circuit 27, and supplied to a clock terminal of a register 29 and a register 30. Also, distances to the leading edge and the trailing edge of a tracking video pulse are added by an adder, to derive its mean value by a 1/2 circuit 33, and to obtain the distace to the center value of the pulse at every pulse repeating period. Its output is supplied to an averaging circuit 34, and a distance information 16 is obtained by an operation of a subtracter 36 and a digital filter 37. Subsequently, a distance tracking error 38 is obtained in a computer 35 by executing the subtraction of a target distance from the averaging circuit and the distance information 16 by the subtracter 36. The distance information to the target is sent to a gate generator 39, processed by a synchronizing pulse SYNC and a clock CLK, to make a distance gate 28 and a distance gate position follows it.
85 Radar apparatus JP17425281 1981-10-30 JPS5876782A 1983-05-09 SAKAYORI HIROYASU
PURPOSE:To perform range calibration in the desired time by an apparatus wherein a synchronous signal serving as a timing signal for starting transmission is delayed to generate a transmission pulse with a time difference and this pulse is directly coupled to a receiver. CONSTITUTION:The synchronous pulse from a synchronous signal reference timing pulse generating circuit 5 is delayed through a variable delay circuit 11, which has been adjusted in accordance with a specific delay in the transmitting/ receiving system for each radar apparatus, so as to generate transmission pulses with the delayed time difference which pulses are sent out through a modulator 3 and a transmission tube 2. A part of these signals is applied to a receiver 1 through a coupler 13 and a gate circuit 12 which are directly coupled to the receiver 1, so that an artificial video signal is formed and a distance is calculated. Then, the circuit 11 is adjusted depending on the difference between thus calculated distance and the given distance based on delay in the transmitting/ receiving systems, whereby range calibration is carried out. With such construction, it becomes possible to perform range calibration in a certain desired period during operation of the radar apparatus.
86 Reflection signal measuring apparatus JP14425380 1980-10-15 JPS5664670A 1981-06-01 JIEREMII MAASERU GURASU; JIYOOJI GUTSUDOMAN RANPUKU; ROJIYAA REO SENTO JIYAAMEIN
87 JPS56500508A - JP50098180 1980-04-23 JPS56500508A 1981-04-16
88 Automatic marin JP15542577 1977-12-23 JPS5394890A 1978-08-19 IGORU PETOROBUICHI BURUGAKOFU; EBUGENII BORISOBUICHI GEORUGIZ; YURII GEORUGIEBUICHI ZURABOFU; ANATORII ANDOREEBUICHI KOSHIEB; SUTANISURAFU AREKISEEBUICHI MO; DOMITORII RAFUAIROBUICHI MEDEI
89 JPS504559B1 - JP10376470 1970-11-26 JPS504559B1 1975-02-20
1308392 Pulse radar TELEFONAKTIEBOLAGET L M ERICSSON 25 Nov 1970 [26 Nov 1969] 56165/70 Heading H4D At least one first channel F is arranged to receive a desired signal and noise in an incoming signal, at least one second channel Sp is arranged to receive a different part of the incoming signal which part contains a greater portion of the noise, automatic gain control means AKR maintains the signal plus noise in channel F constant and controls in common the signal plus noise in all channels, and the signal plus noise in a second channel is monitored; in an embodiment the incoming signal is from a pulse Doppler radar, channel F affords a range tracking strobe, channels Sp cover different fixed range "bins", and the monitoring is provided by a threshold circuits T coupled via an adder to a further threshold circuit TA with an output signal U 1 (U 1 issues when circuit TA shows that a predetermined number of thresholds T have been exceeded) which may actuate an alarm or connect range tracking to a computed probable target position, Fig. 4 (not shown). In a modification signal U 1 and a signal U 2 from a threshold circuit TB are fed as binary signals to logic gates G1, G2: a signal U 3 issues if signal-tonoise ratio is low but signal plus noise is high (i.e. there may be jamming) and a signal U 4 issues if signal-to-noise ratio is low and signal plus noise is low (i.e. a weak or no echo). Range channels F, Sp may be replaced by velocity channels.
90 DETERMINING AN ANGLE TO A TARGET USING INTERFEROMETRY EP03731280.8 2003-05-13 EP1504281B1 2016-10-05 HAGER, James, R.; BURLET, Todd, R.; JORDAN, Lavell
91 METHODS AND APPARATUS FOR RADAR DATA PROCESSING WITH FILTER HAVING REDUCED NUMBER OF COMPUTATIONS EP03726933.9 2003-05-13 EP1504288B1 2014-04-23 HAGER, James, R.; BURLET, Todd, R.; JORDAN, Lavell
92 Füllstandsmessgerät und Verfahren zur Bestimmung eines funktionalen Zusammenhangs zwischen verschiedenen Tracks EP11185454.3 2011-10-17 EP2584324A1 2013-04-24 Welle, Roland; Hoferer, Christian

Gemäß einem Aspekt der Erfindung, werden die Parameter einer Zielfunktion berechnet, welche den Zusammenhang der Positionen zwischen zwei verschiedenen Tracks beschreibt. Mit Hilfe dieser Zielfunktion kann dann aus der Position des einen Tracks auf die Position eines anderen Tracks geschlossen werden.

93 METHODS AND APPARATUS FOR WEIGHTING RADAR RETURN DATA EP04776387.5 2004-06-09 EP1631839B1 2009-01-14 HAGER, James, R.; HEIDEMANN, Thomas, W.; JORDAN, Lavell
A method for reducing effects of terrain return fading due to summation of out of phase radar returns in determining locations of radar targets (48) is described. The method comprises determining an interferometric angle, Phi, to a radar target based on at least one radar return and filtering the interferometric angle, Phi, by adjusting an effect of terrain features contributing to the interferometric angle, Phi, proportionally to a degree of radar return fading resulting from the terrain features of the radar targets, A corrected interferometric angle, Phiout., is then provided, based at least in part on the filtering.
94 Body monitoring apparatus and method EP07111887.1 2007-07-06 EP2012139A1 2009-01-07 Staderini, Enrico Maria; Varotto, Graziano

The present invention concerns a monitor and a method for detecting, monitoring and measuring the movement of internal body organs, such as heart, lungs, foetus, womb, etc.

The monitor comprises an Ultra Wide Band impulse transmitter, consisting of a Pseudo Random Binary Sequence generator (100), a pulse generator (101) and a transmit antenna (102), and an UWB pulse receiver, consisting of a receive antenna (106) and a boxcar averager made of a voltage controlled delay generator (113), a reference level circuit (112) and a sampler-and-averager (114). The latter is synchronously locked to the emitted pulses with a phase shift proportional to the distance between the antennas and the body organ wall to be monitored. According to the present invention, there is also provided a skin echo detector (117) for continuously determining the distance between the antennas and the skin of the patient and using it to adjust the delay of the voltage controlled delay generator to permit the latter to compensate in real time for the movements of the body.

95 OBJECT RECOGNITION AND TRACKING SYSTEM EP00904694.7 2000-02-01 EP1157355B1 2007-04-25 COHEN, Peter, Geoffrey
An object recognition and tracking system having detector arrays (60, 70), each detector array (60, 70) including a first type of detector (95) and a second type of detector (96). The first type of detector (95) detects the presence of an object such as by changing contrast boundaries and hence objects (91, 92) that move in a detector space (90) and the second type of detector (96) focuses in on the defined object (91, 92) and to recognise, identify or record it. The detectors (95, 96) may be video, radar, microwave, radio frequency, infrared, millimetre wave, or transponder interrogators or a combination of these. Tracking of objects (91, 92) between adjoining detector spaces (90, 90) may also be done.
96 METHODS AND APPARATUS FOR WEIGHTING RADAR RETURN DATA EP04776387.5 2004-06-09 EP1631839A1 2006-03-08 HAGER, James, R.; HEIDEMANN, Thomas, W.; JORDAN, Lavell
A method for reducing effects of terrain return fading due to summation of out of phase radar returns in determining locations of radar targets (48) is described. The method comprises determining an interferometric angle, Φ, to a radar target based on at least one radar return and filtering the interferometric angle, Φ, by adjusting an effect of terrain features contributing to the interferometric angle, Φ, proportionally to a degree of radar return fading resulting from the terrain features of the radar targets, A corrected interferometric angle, Φout., is then provided, based at least in part on the filtering.
97 VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG EINES ERWARTUNGSBEREICHES FÜR EIN FÜLLSTAND- UND STöRECHO EP03765023.1 2003-07-17 EP1523661A1 2005-04-20 LAUN, Robert
The invention relates to a method for determining expectancy ranges with which echoes from a level envelope curve produced by a level measuring instrument (10) are associated. The temporal behaviour of past echo data is taken into account during the determination of said expectancy ranges. Due to the fact that the expectancy ranges have a pre-determinable width, it can be established, with pre-determinable probability, whether an echo associated with one such range whether it be a level echo or a spurious echo has been correctly allocated or not to said range. If, for example, a certain expectancy range has been predicted for a level echo, it can be concluded, with pre-determinable probability, that an echo falling in said expectancy range is actually a level echo. The invention also relates to an evaluation device (20) for carrying out said method, to a computer program, and to a computer program product containing instructions for carrying out the inventive method.
98 METHODS AND APPARATUS FOR ACCURATE PHASE DETECTION EP03734099.9 2003-05-13 EP1509784A1 2005-03-02 HAGER, James, R.; BURLET, Todd, R.; JORDAN, Lavell; HENRICKSON, Jens, M.
A phase processor (230) is disclosed which is configured to receive processed radar return data from a left radar channel (224), a right radar channel (228), and an ambiguous radar channel (226). The phase processor (230) comprises a plurality of phase detectors (510, 512, 514) each with an input and a reference input. The phase detectors (510, 512, 514) are configured to determine a phase difference between radar return data received at the input and radar return data received at the reference input.
99 METHODS AND APPARATUS FOR RADAR DATA PROCESSING EP03731240.2 2003-05-13 EP1504282A1 2005-02-09 HAGER, James, R.; HENRICKSON, Jens, M.; FORMO, Jason, I.
A method for testing a radar system utilizing flight test radar data is described. The method includes time synchronizing measured radar data with a GPS based time marker, storing at least a portion of the time synchronized radar data, storing the GPS data, processing the stored GPS data to correspond with a physical position of an antenna which received the radar data, providing a radar model, and comparing the processed radar model data to the stored radar data.
100 DETERMINING AN ANGLE TO A TARGET USING INTERFEROMETRY EP03731280.8 2003-05-13 EP1504281A1 2005-02-09 HAGER, James, R.; BURLET, Todd, R.; JORDAN, Lavell
A method for processing radar return data to determine a physical angle, in aircraft body coordinates to a target, is disclosed. The radar return data inludes a phase difference between radar return data received at an ambiguous radar channel (226) and a left radar channel (224), a phase difference between radar return data received at a right radar channel (228) and an ambiguous radar channel (226), and a phase defference between radar return data received at a rigth radar channel (228) and a left radar channel (224). The method includes adjusting a phase bias (570, 572, 574) for the three phase differences, resolving phase ambiguities (576) between the three Phase differences to provide a signal, and filtering the signal (578) to provide a physical angle to the target in aircraft body coodinates.
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