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37 results about "Wideband signal processing" patented technology
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Low-altitude target detection broadband radar system based on pitching MIMO and array optimization method
ActiveCN106990391AImprove signal to noise ratioAccurate and efficient detectionWave based measurement systemsRadar systemsIntermediate frequency
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Wideband transmitter for position tracking system in combined virtual and physical environment
InactiveUS20160316336A1Accurate trackingReceivers monitoringPosition fixationLocation trackingWide band
A positional tracking system used in a virtual reality environment in which multiple users may freely and unrestrictedly explore an environment without affecting position tracking. Receivers mounted to the user in several locations may be accurately tracked regardless of the position of the user and other users in the system. A plurality of transmitters may transmit wide band signals to one or more receivers on a user. Each receiver may receive the wide band signals from the plurality of transmitters, process those signals, and determine a receiver location based on the received signals. The signals themselves may be wide band signals, for example in the range of 3 GHz to 10 GHz. The wide band signals may include identifier information and a pulse for determining a time-of-flight between the transmitter and receiver.
Owner:THE VOID LLC
Radio frequency receiver system for wideband signal processing
ActiveUS20140211890A1Amplitude-modulated carrier systemsAmplitude demodulationRF front endNetwork management
Owner:THINKRF CORP
Dual mode radio frequency receivers for wideband signal processing
ActiveUS20140378079A1Requires minimizationIncrease spectral bandwidthRadio transmissionTuned radio frequency receiverFrequency spectrum
Wireless communication is ubiquitous today with increasing deployments leading to increased interference, increasing conflicts, etc. Monitoring the wireless environment is therefore important for regulators, service providers, Government agencies, enterprises etc. Such monitoring should be flexible both in networks monitored within the wireless environment as well as detecting unauthorized transmitters, allowing dynamic network management, etc. However, such real time spectral / signal analysis in the prior art requires both a wideband direct conversion receiver (DCR), for high performance, wideband, fast, programmable spectral analysis, and a super heterodyne receiver for fast, narrowband, programmable demodulation for signal analysis. According to embodiments of the invention a single receiver design methodology exploiting a single RF circuit to provide superheterodyne and direct conversion receiver functionalities.
Owner:THINKRF
Frequency and time domain streaming receiver
A wideband signal processing receiver system including an interface for connecting to an analogue to digital converter (ADC) of a broader signal chain lineup, wherein the interface receives digital data from the ADC, and a field programmable gate array (FPGA) and associated configuration for converting the digital data into two digital signal paths. The two digital signal paths include a frequency domain path and an optionally decimated time domain path. A memory and / or high speed bus stores or transfers high speed bus / link data from the frequency domain path and the time domain path.
Owner:ALLEN VANGUARD
Radio frequency receiver system for wideband signal processing
ActiveUS8675781B2Frequency/rate-modulated pulse demodulationDuration/width modulated pulse demodulationRF front endNetwork management
Wireless communication is ubiquitous today and deployments are growing rapidly leading to increased interference, increasing conflicts, etc. As a result monitoring the wireless environment is increasingly important for regulators, service providers, Government agencies, enterprises etc. Such monitoring should be flexible in terms of the networks being monitored within the wireless environment but should also provide real-time monitoring to detect unauthorized transmitters, provide dynamic network management, etc. Accordingly, based upon embodiments of the invention, a broadband, real-time signal analyzer (RTSA) circuit that allows for the deployment of RTSA devices in a distributed environment wherein determination of policy breaches, network performance, regulatory compliance, etc. are locally determined and exploited directly in network management or communicated to the central server and network administrators for subsequent action. Beneficially the RTSA exploits a broadband RF front end in conjunction with parallel direct down conversion and FFT techniques.
Owner:THINKRF CORP
High frequency and vary-high frequency broad band signal processing system and method
ActiveCN103248390AHigh operating frequency extensionReal-time detectionTransmission monitoringGate arrayLow-pass filter
The invention discloses a high frequency and vary-high frequency broad band signal processing system and method. The system comprises a harmonic filter, a first mixer connected with the harmonic filter, a low-pass filter connected with the mixer, a first path switch respectively connected with the harmonic filter and the low-pass filter, an automatic gain control device connected with the first path switch, an analog-to-digital converter connected with the automatic gain control device, an on-site programmable gate array device connected with the analog-to-digital converter, a second mixer connected with the on-site programmable gate array device, a band-pass filter connected with the second mixer, a second path switch respectively connected with the band-pass filter and the on-site programmable gate array device, a digital to analog converter respectively connected with the second path switch and the harmonic filter, and an information channel detector. The system has the benefits of being more miniaturized and integrated and reducing power consumption.
Owner:西安烽火电子科技有限责任公司
Wide-band signal processor
A signal processor for processing a digital input signal including samples sampled at a sampling frequency, the signal processor comprising a plurality of filters arranged to divide the digital input signal into a first signal in a first frequency band below a first cut-off frequency, and a second signal in a second frequency band above a second cut-off frequency; first frequency shifting circuitry arranged to shift the second signal to a frequency band below the first cut-off frequency; decimation circuitry arranged to decimate the first signal and the shifted second signal; and processing circuitry arranged to process the decimated first and second signals.
Owner:STMICROELECTRONICS SRL
Method, system, and apparatus for wideband signal processeing
InactiveCN101971508ATransmissionFrequency selective two-port networksIntegratorIntermediate frequency
Embodiments include methods, systems, and apparatuses capable of dynamically and adaptively operating on wideband signals. Examples include state variable filters whose center frequencies can be tuned using variable gain blocks coupled to outputs of filter integrators. First- and second-order state variable filters may operate on signals in parallel and their outputs combined to produce a filtered output. Filters may be tuned to pass or reject signals depending on the application; sample applications include, but are not limited to: agile filtering; spectrum analysis; interference detection and rejection; equalization; direct intermediate-frequency transmission; and single-sideband modulation and demodulation.
Owner:斯佩罗设备有限公司
Apparatus, methods and articles of manufacture for wideband signal processing
An apparatus for electromagnetic processing comprises a modulator for generating one or more elements representative of an input signal; a divider controlled by the one or more elements and receiving an electromagnetic wave to generate a modified signal; a comparator for comparing the modified signal to a reference signal and for generating a processed signal based upon the comparison; and a channel number calculator for selecting a channel for the processed signal, wherein the input signal incorporated the channel selection.
Owner:NORTH SOUTH HLDG
Frequency and time domain streaming receiver
ActiveUS9800449B2Spectral/fourier analysisSpatial transmit diversityDigital dataAnalog-to-digital converter
A wideband signal processing receiver system including an interface for connecting to an analog to digital converter (ADC) of a broader signal chain lineup, wherein the interface receives digital data from the ADC, and a field programmable gate array (FPGA) and associated configuration for converting the digital data into two digital signal paths. The two digital signal paths include a frequency domain path and an optionally decimated time domain path. A memory and / or high speed bus stores or transfers high speed bus / link data from the frequency domain path and the time domain path.
Owner:ALLEN VANGUARD
Dual mode radio frequency receivers for wideband signal processing
Wireless communication is ubiquitous today with increasing deployments leading to increased interference, increasing conflicts, etc. Monitoring the wireless environment is therefore important for regulators, service providers, Government agencies, enterprises etc. Such monitoring should be flexible both in networks monitored within the wireless environment as well as detecting unauthorized transmitters, allowing dynamic network management, etc. However, such real time spectral / signal analysis in the prior art requires both a wideband direct conversion receiver (DCR), for high performance, wideband, fast, programmable spectral analysis, and a super heterodyne receiver for fast, narrowband, programmable demodulation for signal analysis. According to embodiments of the invention a single receiver design methodology exploiting a single RF circuit to provide superheterodyne and direct conversion receiver functionalities.
Owner:THINKRF
Digital down-conversion method of parallel structure
ActiveCN111786690AOvercoming the problem of low data throughputHigh-speed receive processingTransmissionMulti-frequency-changing modulation transferenceDigital down converterChannelized
The invention provides a digital down-conversion method of a parallel structure. The method comprises the following steps: carrying out multiphase processing on an input signal, generating a multiphase local oscillator, carrying out multiphase mixing, constructing a preset matrix, designing a prototype low-pass filter, carrying out multiphase processing on coefficients of the prototype low-pass filter, carrying out mixing data precoding, and constructing a parallel filter bank, thereby realizing parallel filtering. According to the method, the problem of low data throughput rate of a serial structure digital down converter is overcome; high-speed sampling signal receiving processing is realized; the requirements of broadband signal processing are met; the frequency of frequency conversionand the cut-off frequency of low-pass filtering can be flexibly set. According to the method, full-bandwidth direct receiving processing of signals is realized, so that a cross-channel problem of a channelized receiver is avoided, merging input of similar items is realized by adding a preset matrix, the number of filters in a parallel structure is greatly reduced, hardware resource consumption isreduced, and FPGA realization is facilitated.
Owner:NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
Wideband signal processing
InactiveCN103959726AComputing operations for integration/differentiationBaseband system detailsCMOSHigh bandwidth
A biquad wideband signal processing circuit can operate over bandwidths of 50 MHz to 20 GHz or more. The biquad circuit employs a configuration of integrators (transconductors), buffers, and scalable summers that can be implemented using deep sub-micron CMOS technology. Combining this scaling with high gain / high bandwidth enables implementation of feedback and programmability for broadband analog signal processing. A biquad circuit implementing a number of parallel integrator lines having adjustable gain provides greater accuracy, stability, and bandwidth, and allows for control of process variations and temperature variation in real-time.
Owner:斯佩罗设备有限公司
High-frequency broadband underwater acoustic transducer and manufacturing method thereof
InactiveCN110493698AMeet the requirements of technical indicatorsLarge amount of informationPiezoelectric/electrostrictive transducersCeramic compositeOperating frequency
The invention belongs to and relates to a high-frequency broadband underwater acoustic transducer device, in particular to a high-frequency broadband underwater acoustic transducer and a manufacturingmethod thereof. The underwater acoustic transducer comprises a matching layer, a wafer backing layer and an acoustic transmission coating layer which are sequentially installed in the shell in parallel from top to bottom, wherein the wafer is of a 1-3-2 type piezoelectric ceramic composite material structure and comprises a ceramic substrate, a plurality of ceramic elements grow on the ceramic substrate, and every two ceramic elements are connected through a high-molecular polymer; an upper electrode is arranged above the ceramic element; a lower electrode is arranged below the ceramic substrate, a watertight cable or a watertight connector is led out from the lower electrode through the backing layer and the shell, and received or transmitted electric signals are input or output. According to the technical requirements of working frequency and bandwidth characteristics, the wafer and the matching layer are optimally designed, and when the method is applied to underwater speed measurement sonar and detection sonar, broadband signal processing can be carried out to increase the information amount, improve the detection precision, increase the detection range and the like.
Owner:CHINA ELECTRONICS TECH GRP NO 26 RES INST
Methods and system for wideband signal processing in communication network
InactiveUS9847092B2Reduce noiseReduces stochastic wideband noiseMicrophonesGain controlEngineeringWideband audio
Owner:KONCHITSKY ALON
Robust and broadband signal processing using replica generation apparatus
InactiveUS20060066471A1Low costImprove accuracyFrequency measurement arrangementCommunication jammingSpectrum analyzerElectronic warfare
Embodiments of the present invention are low cost, robust, broadband, optimum, high precision methods and apparatus of processing pulsed, transient, non-cooperative, non-reproducible, complex, or simultaneous signals based on correlation measurements utilizing optical RF signal train generators. An embodiment of the inventive apparatus comprises: (a) a signal receiving apparatus which receives one or more signals, and outputs the signals; (b) a replica generation apparatus, which comprises one or more RF signal train generators, accepts signals from the receiving apparatus as inputs, and outputs trains of replica pairs, where relative separations between two members in the replica pairs are same or different; and (c) an integration apparatus which performs Doppler, self, or mutual (cross) correlation operations on the replica pairs at RF or optical level. The apparatus of present invention advance interferoceivers of prior art, and overcome deficiencies of radar receivers, channelized receivers, electronic warfare receivers, spectrum analyzers, sampling oscilloscopes, and many others.
Owner:LI MING CHIANG
Wide-band signal processor
A signal processor for processing a digital input signal including samples sampled at a sampling frequency, the signal processor comprising a plurality of filters arranged to divide the digital input signal into a first signal in a first frequency band below a first cut-off frequency, and a second signal in a second frequency band above a second cut-off frequency; first frequency shifting circuitry arranged to shift the second signal to a frequency band below the first cut-off frequency; decimation circuitry arranged to decimate the first signal and the shifted second signal; and processing circuitry arranged to process the decimated first and second signals.
Owner:STMICROELECTRONICS SRL
Methods and system for wideband signal processing in communication network
InactiveUS20150071462A1Reducing stochastic wideband noiseReduce noiseMicrophonesGain controlEngineeringWideband audio
The embodiments herein disclose a device and a method for controlling noise in a wideband communication system. In one embodiment herein, multiple microphones for receiving wideband audio signals are provided. A processor is configured to analyze each wideband audio signal received by each microphone. Further, unique signal patterns are generated based on each analyzed wideband signals for each microphone and the unique signal patterns are compared to detect any identical signal patterns. A controller is also provided for controlling gains of those microphones that are detected to be receiving wideband audio signal of identical signal patterns.
Owner:KONCHITSKY ALON
Channel integrated engineering implementation method and device
ActiveCN109687883AReduce usageMeet the process requirementsDigital technique networkTransmissionBinary multiplierPhase filter
The invention discloses a channel integrated engineering implementation method and device. The method comprises the following steps: firstly performing a joint IDFT on a plurality of input narrowbandchannel data, and obtaining the results of positive and negative paths through data selection; then performing format conversion on the output data of each path such that the subsequent filter can multiplex the multiplier and the data is output in a natural order after filtering; finally, periodically switching the positive and negative data for multiphase filtering, and outputting a wideband signal. The device comprises an inverse discrete Fourier transform (IDFT) module, a format conversion module, and a periodic poly-phase filtering module. The invention realizes the IDFT of the odd-numbered channel multiplication-1 data by using direct IDFT, and adopts the cyclic switching data source for the multi-phase filtering, which greatly reduces the use of multiplier resources, with strong engineering achievability. The invention solves the problem that the signal phase is abrupt caused by direct IDFT for channel synthesis, and the integrated wideband signal waveform error is within the engineering acceptable range, which satisfies the subsequent broadband signal processing requirements.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
Microwave Broadband Signal Processing Method and Microwave Photonic Channelized Receiver
ActiveCN111313973BReduce lossHigh bandwidthWavelength-division multiplex systemsElectromagnetic transmittersSoftware engineeringCarrier signal
The invention discloses a microwave broadband signal processing method and a microwave photon channelized receiver, and the microwave broadband signal processing method comprises the following steps:firstly, carrying out the spectrum slicing of a microwave broadband signal based on a photoelectric hybrid loop; then, carrying out carrier extraction and wavelength division demultiplexing parallel processing on the optical signal after spectral slicing; and finally, constructing a coupling network, coupling each information wavelength output by wavelength division multiplexing with a corresponding optical carrier to enter a photoelectric detector array, completing envelope detection, and finally realizing multi-path microwave signal output. According to the invention, channelized receiving is carried out on broadband microwave signals by using a microwave photon technology; based on the advantages of low loss, large bandwidth, electromagnetic interference resistance and the like of the optical fiber, the electronic bottleneck of a traditional electronic microwave channelized receiver can be broken through, and compared with the traditional channelized receiver, the optical fiber channelized receiver has the functions of ultra-large receiving bandwidth, tunable channel center frequency and tunable channel gap, and can be widely applied to the fields of communication, electronic warfare, aerospace and the like.
Owner:HUNAN INST OF TECH
Terahertz high-speed communication transmitting mechanism frame and ultra-wideband signal processing method
ActiveCN114301476ASlow downReduced sampling rate requirementsMulti-frequency code systemsHigh level techniquesUltra-widebandLow-pass filter
The invention discloses a terahertz high-speed communication transmitting mechanism frame and an ultra-wideband signal processing method, the frame comprises a baseband part and a radio frequency part, the baseband part comprises an algorithm-level fully-parallel digital modulation frame, a DAC and a low-pass filter, and the radio frequency part comprises an orthogonal harmonic mixer; the ultra-wideband signal processing method is carried out based on the terahertz high-speed communication transmitting mechanism frame. According to the terahertz high-speed communication transmitting mechanism frame, the speed limit of an FPGA device is broken through, the signal processing speed is greatly improved with few hardware resources under the low device clock frequency, the algorithm hardware implementation problem under the high transmission capacity is solved, the sampling rate requirement of a DAC is lowered, and meanwhile compared with a traditional secondary frequency conversion structure, the transmission efficiency of the terahertz high-speed communication transmitting mechanism frame is greatly improved. According to the invention, the frequency of the signal can be converted to the terahertz frequency band only through one-time frequency conversion, thereby reducing the loss of multiple times of frequency conversion, and improving the transmission quality of the radio-frequency signal.
Owner:INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
Broadband radar system and array optimization method for low-altitude target detection based on pitch mimo
ActiveCN106990391BImprove signal to noise ratioAccurate and efficient detectionWave based measurement systemsRadar systemsIntermediate frequency
The invention discloses a low-altitude target detection broadband radar system based on pitching MIMO and an array optimization method. By combining the frequency phase position comprehensive coding synthetic broadband signal processing technology and the sparse MIMO array signal processing technology, highly efficient and high-precision detection on a low-altitude target can be achieved. The system comprises an antenna branch system, a transceiving assembly branch system, a radio frequency channel branch system, a waveform generation branch system, a frequency synthesizer branch system, a signal processing branch system and a display control terminal branch system. The waveform generation branch system generates six-channel middle-frequency signals through a digital-to-analog conversion DAC playing board card. The middle-frequency signals are in the form of frequency phase position composite coding signals. The six-channel middle-frequency signals enter the frequency synthesizer branch system and pass through the radio frequency channel branch system, the transceiving assembly branch system and ten antenna branch system, so emission wave beams are formed. The transceiving assembly branch system receives echo signals of the target. The echo signals pass through the radio frequency channel branch system, the frequency synthesizer branch system and the signal processing branch system, so an one-dimensional distance image and primary point tracks are obtained.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
A high frequency and very high frequency broadband signal processing system and processing method
ActiveCN103248390BHigh operating frequency extensionReal-time detectionTransmission monitoringLow-pass filterGate array
Owner:西安烽火电子科技有限责任公司
Method, system, and apparatus for wideband signal processing
InactiveCN101971508BTransmissionFrequency selective two-port networksIntegratorIntermediate frequency
Owner:斯佩罗设备有限公司
Method and system to implement wideband retro-reflective wave mechanics
InactiveUS20220003857A1Increase receiving powerIncrease power levelRadio wave reradiation/reflectionAcoustic wave reradiationEngineeringWave mechanics
Methodology to combine Wave Mechanics with Retro-Reflection, to take in the Far Field emitted (incident) Wideband signal via a small array, process the signal and Retro-Reflectively re-transmits the Wideband signal back out, with the Wave Mechanics rotation mechanism injected into the array weights.
Owner:JUDD MANO
A method and device for implementing integrated channel engineering
ActiveCN109687883BReduce usageMeet the process requirementsDigital technique networkTransmissionMultiple inputReliability engineering
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
Broadband signal processing method and system
ActiveCN109450547ARealize high-precision waveform analysisImplementing the Optical Fourier TransformDistortion/dispersion eliminationFrequency spectrumGrating
The invention discloses a broadband signal processing method and a system. The method comprises the steps of: a, carrying out frequency-spectrum / wavelength mapping on a linear broad-spectrum chirp light pulse and a to-be-processed signal; b, completing a time-domain-frequency mapping on the signal, which is processed in the step a, through a dispersive medium B; c, transmitting the signal, which is processed in the step b, to a reflective blazed grating to spread the same spatially according to respective frequency / wavelength components; d, placing an imaging screen on a reflective path of thereflective blazed grating, and receiving a signal from reflection of the reflective blazed grating to generate a spatial intensity distribution pattern; e, placing the imaging screen on a front focalplane of a Fourier lens, and completing real-time Fourier transform on the spatial intensity distribution pattern through the Fourier lens; and f, carrying out sampling on a spatial intensity distribution pattern after completion of Fourier transform through multiplex optical fiber disposed in a back focal plane of the Fourier lens. The broadband signal high-precision frequency-spectrum analysisprocessing method and the system of the invention are obtained by parallel outputting a Fourier transform result for organic fusion with a high-precision electricity processing system
Owner:GUIZHOU UNIV
Robust and broadband signal processing using replica generation apparatus
InactiveUS8350754B2Low costImprove accuracyFrequency measurement arrangementCommunication jammingSpectrum analyzerEngineering
Embodiments of the present invention are low cost, robust, broadband, optimum, high precision methods and apparatus of processing pulsed, transient, non-cooperative, non-reproducible, complex, or simultaneous signals based on correlation measurements utilizing optical RF signal train generators. An embodiment of the inventive apparatus comprises: (a) a signal receiving apparatus which receives one or more signals, and outputs the signals; (b) a replica generation apparatus, which comprises one or more RF signal train generators, accepts signals from the receiving apparatus as inputs, and outputs trains of replica pairs, where relative separations between two members in the replica pairs are same or different; and (c) an integration apparatus which performs Doppler, self, or mutual (cross) correlation operations on the replica pairs at RF or optical level. The apparatus of present invention advance interferoceivers of prior art, and overcome deficiencies of radar receivers, channelized receivers, electronic warfare receivers, spectrum analyzers, sampling oscilloscopes, and many others.
Owner:LI MING CHIANG
A conventional radar anti-radar signal high-precision real-time forwarding deception jamming method
ActiveCN104991234BAchieve inhibitionWave based measurement systemsSignal characteristicWideband signal processing
Owner:THE 724TH RES INST OF CHINA SHIPBUILDING IND
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