610 results about "Local oscillator" patented technology

The invention relates to the technical field of communication, and discloses a network communication chip signal interference suppression processing method. The method comprises the following steps: acquiring a local oscillator phase jitter sequence in real time through an on-chip phase noise monitoring unit; estimating Doppler frequency shift and channel coherence time based on the sequence; dynamically adjusting the closed-loop bandwidth of the phase-locked loop; and generating a phase compensation signal, and performing time-varying channel minimum mean square error equalization in combination with a received baseband signal to eliminate inter-symbol interference. The system integrates a phase noise monitoring function module, a channel parameter estimation function module, a phase-locked loop bandwidth regulation function module, a phase compensation generation function module and an interference joint elimination function module. By means of dynamic bandwidth reconstruction and high-precision phase compensation, the bit error rate under high-speed movement is remarkably reduced, the 5G millimeter wave communication standard requirement is met, and the method has the advantages of being achieved on a whole chip, low in delay and high in robustness.

An optical frequency domain reflectometer with environmental disturbance resistance and large strain measurement capability belongs to the field of distributed optical fiber sensing and comprises an opposite sweep frequency light frequency modulation continuous wave signal generation module, a light splitting device, a modulation device, a circulator, a polarization controller, an optical coupling device, a photoelectric conversion module and a data acquisition and processing module. An optical signal generated by an opposite sweep frequency light frequency modulation continuous wave signal generation module is divided into probe light and local oscillation light through a light splitting device, the probe light is modulated through a modulation device and sent to an optical fiber through a circulator, and a Rayleigh back scattering light signal generated by the optical fiber and the local oscillation light interfere in an optical coupling device to obtain interference light; the photoelectric conversion module mixes beat frequency signals of interference light, and the data acquisition and processing module analyzes and processes the beat frequency signals. According to the invention, the position information of the Rayleigh backscattering point is marked by using the modulated probe light, the Rayleigh scattering signal at the corresponding position is restored, crosstalk between channels is inhibited, and high-precision measurement in a large dynamic range and resistant to environmental disturbance is realized.

The invention discloses a mirror image rejection method and device based on spectrum entropy, and belongs to the technical field of radio frequency signal processing. Multiple groups of frequency spectrums are collected by moving a local oscillator, the frequency spectrums are mapped to a unified reference frequency axis to achieve frequency alignment, a spectrum entropy sequence of the same frequency point after alignment is calculated, and the problem that the spectrum entropy fluctuation of the same frequency point is large due to nonlinear deviation of the local oscillator frequency of a mirror image signal is solved. And accurate identification and suppression of the mirror image signal are realized due to the difference of spectrum entropy stability caused by linear offset of the useful signal. According to the method, multiple groups of frequency spectrums are mapped to a unified reference axis through frequency alignment, high-precision mirror image suppression is effectively realized by utilizing the characteristics of large fluctuation of mirror image signals and stable useful signals in a spectrum entropy sequence of the same frequency point, the distinguishing capability in a complex scene is improved, and the problems of high cost and insufficient robustness of an existing mirror image suppression method are solved.

The invention discloses a Rydberg atom-based microwave regulation multi-channel frequency hopping device, which comprises an atomic gas chamber, probe light enters and passes through the atomic gas chamber from one end of the atomic gas chamber and then is reflected to a photoelectric detector through a polarization splitting prism, and coupled light is reflected by a reflector and then is transmitted to the photoelectric detector. The coupling light passes through the polarization splitting prism and enters the atomic gas chamber from the other end of the atomic gas chamber, and the coupling light reflected by the reflector and the probe light are overlapped in optical path and opposite in propagation direction; a local oscillator microwave signal generator and an auxiliary microwave signal generator are arranged on one side of the atomic gas chamber, the local oscillator microwave signal generator and the auxiliary microwave signal generator emit microwave signals into the atomic gas chamber, and the other side of the atomic gas chamber receives radio frequency signals to be measured; the invention further discloses a microwave regulation and control multi-channel frequency hopping method based on the Rydberg atoms. By reasonably configuring the frequency of the auxiliary microwave signal and the frequency of the local oscillation microwave signal, flexible frequency hopping of cesium Rydberg atoms in six different channels is achieved.

A wireless communication device includes RF input to receive RF signals in a range of DC to 300 GHz. The wireless communication device includes RF front-end that includes plurality of band filters to apply band-specific filtering operation to the received RF signals to obtain filtered RF signals. A local oscillator generates tunable local oscillator frequencies above a threshold frequency. The wireless communication device includes circuitry to execute a frequency shifting operation in one or more frequency conversion stages in which one or more tuned local oscillator frequencies above the threshold frequency are injected at the circuitry to push image frequencies above the threshold frequency and shift the filtered RF signals to predefined intermediate frequencies. The filtered RF signals are digitized and a processor concurrently processes the digitized down-converted signals across predefined intermediate frequencies, based on configuration of MLO parameters and performs a real-time or near real-time enhanced spectrum monitoring operations.

The invention discloses a multichannel broadband receiver, and belongs to the technical field of microwave radio frequency and electronic control, the multichannel broadband receiver comprises a multichannel down-conversion assembly, a local oscillator power component, a power interface control panel and a VPX connector, the down-conversion assembly adopts a cavity-divided integrated structure, multiple identical radio frequency links are arranged in the same cavity in parallel, and the VPX connector is connected with the local oscillator power component. Down conversion from a 2-18GHz radio frequency signal to a 1.3-2.3 GHz intermediate frequency signal is realized through two-stage frequency mixing; the power supply interface control board takes an FPGA as a core, integrates the functions of multi-path power supply conversion, driving isolation, state monitoring and the like, and realizes channel gain power failure storage and calling, BIT self-inspection, nanosecond rapid turn-off and multi-parameter real-time monitoring through software and hardware cooperation. Through collaborative innovation of the structure, circuit and control, high integration, high channel consistency, high isolation and high intelligence of the multi-channel receiver are realized, and the multi-channel receiver is suitable for the fields of high-performance radars, electronic countermeasures and the like.

A light detection and ranging (LIDAR) sensor system for a vehicle may include a transmitter, a receiver and a mixer. The transmitter may include a first grating coupler. The transmitter may transmit an optical signal. The receiver may include a pair of grating couplers configured to receive a pair of returned optical signals in response to transmitting the optical signal. The mixer may receive the pair of returned optical signals from the receiver, receive a local oscillator (LO) signal from a local oscillator, mix the pair of returned optical signals with the LO signal, and output a plurality of mixed optical signals. Two of the plurality of mixed optical signals have a relative phase difference of 90 degrees.

A system for enhanced time division duplexing (TDD) synchronization in a wireless mesh network includes a master access point device and a plurality of repeater devices. The master access point device propagates a first extended wireless local area network (WLAN) beacon to plurality of repeater devices in a specific order based on network topology mapping information. The first extended WLAN beacon includes a first synchronization pattern. A first repeater device receives the first extended WLAN beacon and compares the first synchronization pattern with a prestored synchronization pattern. The first repeater device iteratively adjusts the timing of a local oscillator based on signal strength or signal-to-noise ratio measurements until the patterns match with the prestored synchronization pattern. The first repeater device locks TDD signal timing at the first repeater device based on the first synchronization pattern that matches with the prestored synchronization pattern.

The invention discloses a distributed optical fiber two-dimensional vector sensing system and method, the system uses an acousto-optic modulator group and an optical circulator group to ask a plurality of fiber cores of a multi-core optical fiber in parallel, heterodyne coherent detection uses local oscillator light to improve the signal-to-noise ratio, and through the relation between the fiber core position difference and the direction angle of a two-dimensional sound wave in the aspect of algorithm, the two-dimensional sound wave direction angle is obtained. According to the space division multiplexing distributed optical fiber acoustic sensing system, a two-dimensional vector signal is accurately restored, the measurement vector angle range of the space division multiplexing distributed optical fiber acoustic sensing system for two-dimensional sound waves is 0-360 degrees, the vector sensing range is larger than 50 km and far exceeds that of an existing system, and the detection capacity of the distributed optical fiber acoustic sensing system is greatly improved.

The invention discloses a fractional frequency division frequency synthesizer with output signal phase synchronization and frequency modulation continuous wave functions, and the basic structure is a charge pump phase-locked loop. Comprising a phase frequency detector, a first charge pump, a second charge pump, a low-pass filter, a voltage-controlled oscillator, a first buffer, a second buffer, a two-frequency divider chain, an IQ undersampling circuit, a local oscillator generator, a programmable multimode frequency divider, a Delta-Sigma modulator (DSM), a first selector, a second selector, a third selector, a tracking phase accumulator, a numerical control oscillator, an accumulation phase difference register and an atan2 logic circuit. The device comprises a main phase control circuit, a phase adjusting circuit, an enabling control circuit, a waveform generator and a serial peripheral interface. The decimal frequency-division frequency synthesizer can be applied to a general-inductance integrated system, ensures that output signals provided by a plurality of decimal frequency-division frequency synthesizers are consistent in phase in a multi-channel radio frequency transceiving system adopting a multi-chip splicing mode, and can also be applied to the general-inductance integrated system as a sensing signal source; and the speed and the distance of an object can be quickly sensed by the high linearity and the quick chirp capability of an output signal. The decimal frequency division frequency synthesizer is applied to a linear frequency modulation continuous wave radar system, initial phase synchronization can be carried out firstly, then frequency continuous modulation is carried out, and measurement errors can be eliminated. In view of functional similarity of partial modules of the synchronous loop and the FMCW loop, such as a phase frequency detector, a charge pump, a voltage-controlled oscillator and the like, the modules can be shared, so that the power consumption and area cost of the system are remarkably reduced.

The invention relates to the technical field of broadband signal synthesis and high-speed digital-to-analog conversion, in particular to an oversampling-based real-time frequency interleaving digital-to-analog conversion system aliasing suppression method and system, and aims to solve the problem of spectrum aliasing caused by non-ideal characteristics of a digital sub-band decomposition filter and an analog filter under a real-time architecture of the system. In the invention, the sub-band decomposition is completed by adopting the linear phase complementary filter bank, so that distortion introduced by a transition band of a digital filter is avoided; by restraining system parameters such as passband and stopband frequencies and local oscillation frequency of a sub-band decomposition filter, a protection band is set by an oversampling mechanism, a frequency margin is reserved for a transition band of the filter, and aliasing components are suppressed. According to the method, extraction aliasing of a digital domain and mirror image aliasing of an analog domain are avoided at the same time from the system architecture, the frequency spectrum purity of output signals is improved, the method is suitable for a real-time system for processing continuous data streams, and technical support is provided for achieving a high-performance broadband signal source.

The invention provides a phase-sensitive optical time domain reflectometer system and method, and the system comprises a first polarization-maintaining coupler which is used for dividing laser generated by a DC laser, and obtaining first laser and second laser; the optical fiber measurement front-end module is used for processing the random signal through pulse shaping and multi-carrier modulation technologies to generate an electric signal, and sequentially performing modulation, amplification, Rayleigh scattering and amplification on the first laser after the electric signal is generated to obtain amplified Rayleigh backscattered light; the second polarization-maintaining coupler is used for dividing the second laser to obtain third laser and local oscillation light; the delay optical fiber is used for processing the third laser to obtain delay light; the third polarization-maintaining coupler is used for combining the delayed light and the amplified Rayleigh backscattered light to obtain combined light; the receiver is used for processing the combined light and the local oscillation light to obtain multiple paths of target electric signals; and the oscilloscope is used for processing multiple paths of target electric signals through low-pass and high-pass filters and a phase noise compensation algorithm so as to determine power and phase distribution. The system cost can be reduced.

The invention relates to a high-energy laser control system and a high-energy laser. The system comprises a master control module and a plurality of sub-control modules, the main control module at least comprises a time sequence output unit, a Q-switching unit, a local oscillation closed-loop control unit and a low-delay interaction unit; the time sequence output unit is used for generating a main clock and outputting multiple paths of homologous clock signals and Q-switched trigger signals in a frequency division mode, and the multiple paths of homologous clock signals comprise clock pumping signals used for controlling the local oscillation system and clock signals of all the sub-control modules; the Q-switching unit is used for controlling the on-off of the voltage on the electro-optical crystal according to the Q-switching trigger signal; the local oscillator closed-loop control unit is used for monitoring and adjusting local oscillator pump voltage and current parameters; the low-delay interaction unit is used for performing time-sharing and priority-based communication with the sub-control modules in different working states; and each sub-control module is used for controlling the working parameters of the corresponding amplification unit according to the control information of the main control module and the homologous clock signal.

A gyro sensor circuit includes a gyro sensor generating a radio frequency (RF) sensing signal according to an angular movement of the gyro sensor, and an RF sensing path comprising a first chopper comprising a chopping switch, and configured to chop a tone signal at a chopping frequency to generate a chopped tone signal, an adder configured to insert the chopped tone signal to the RF sensing signal to produce a combined RF sensing and tone signal, and a first demodulator configured to mix the combined RF sensing and tone signal with a local oscillator (LO) signal to output a demodulated signal. The tone signal may be the LO signal. The gyro sensor circuit further comprises a sense base band path comprising a first analog-to-digital converter configured to sample the demodulated signal to output a digitized signal, and a first digital signal processor to extract various signals to be analyzed.

Aspects of the present disclosure describe techniques that involve an active stabilization of coherent controllers using nearby qubits. In an aspect, a quantum information processing (QIP) system for stabilizing phase damping in qubits is described that provides a first and a second qubit ion, measuring magnetic field fluctuations using the second qubit ion, and generates one or more magnetic fields based on the measured magnetic field fluctuations, the one or more magnetic fields being applied near the first qubit ion to cancel the magnetic field fluctuations to stabilize the phase damping of the first qubit ion. Another such QIP system performs provides a first and a second qubit ion, locks a local oscillator to a frequency reference associated with the second qubit ion, and tracks, using the local oscillator, a frequency of the first qubit ion based on the frequency reference. Methods associated with these QIP systems are also described.

The invention relates to a Doppler frequency offset compensation method based on double-link cooperation and a satellite communication system. The Doppler frequency offset compensation method comprises the following steps that a UHF transmitter of a mobile platform terminal sends GPS information data of the mobile platform terminal to a UHF receiver of a satellite end; the UHF receiver of the satellite end receives GPS information data of the mobile platform terminal and transmits the GPS information data to the Ka receiver of the satellite end; a Ka receiver at the satellite end calculates UHF Doppler frequency offset by using the GPS information data of the mobile platform terminal and the position and speed of the satellite, and calculates Ka Doppler frequency offset based on the UHF Doppler frequency offset; injecting the Ka Doppler frequency offset into a local oscillator synthesizer of a Ka receiver at a satellite end to carry out Ka Doppler frequency offset pre-compensation; and compensating the pre-compensated residual frequency offset by using the phase-locked loop. According to the Doppler frequency offset compensation method, the time delay bottleneck of Ka link frequency offset compensation is highlighted, and the requirement that the end-to-end time delay of low-orbit satellite real-time services is smaller than or equal to 50 ms is met.

A battery management system comprising: a synchronisation element comprising an oscillator wherein the synchronisation element is configured to generate a reference clock signal based on an output of the oscillator; and a plurality of measurement devices wherein each measurement device is configured to measure an electrical property of one or more battery cells and comprises a local oscillator configured to generate an individual clock signal; and wherein the plurality of measurement devices are connected in a communication network with the synchronisation element, and wherein: the synchronisation element is configured to send, by the communication network, time reference signals to the plurality of measurement devices based on the reference clock signal; each measurement device is configured to compare each time reference signal to its individual clock signal and, based on any detected difference, adjust its local oscillator to synchronize the individual clock signal with the reference clock signal.

The embodiment of the invention relates to jitter compensation calibration. According to one embodiment, a method for calibrating a local oscillator in an amplitude shift keying (ASK) demodulator of a wireless power transmitter is presented. The method includes: receiving a digital signal corresponding to a voltage or a current of a transmitter coil in a wireless power system implemented with frequency jitter; iteratively adjusting a counter value associated with a jitter table of the local oscillator; wherein for each iteration, the method comprises generating an in-phase (I) component and a quadrature (Q) component using a local oscillator, calculating a metric based on the I component and the Q component, and storing a counter value if the calculated metric exceeds a previously stored optimal metric; and configuring the local oscillator with the stored counter value associated with the optimal metric.

The invention provides a remote weak signal detection system and method based on weak measurement technology enhancement, and can be applied to the technical field of signal detection. The system comprises a light source for providing initial signal light; the first beam splitter is used for splitting the initial signal light into first local oscillator light, second local oscillator light and signal light; the long-distance signal transmission simulation unit obtains intermediate signal light; the second beam splitter divides the intermediate signal light into first sub-intermediate signal light and second sub-intermediate signal light; the first signal action unit modulates the first sub-intermediate signal light into first post-selection signal light, and performs heterodyne detection on the first post-selection signal light and the first local oscillation light to obtain a first heterodyne detection result; the second signal action unit modulates the second sub-intermediate signal light into second post-selection signal light, heterodyne detection is carried out on the second post-selection signal light and the second local oscillator light, a second heterodyne detection result is obtained, and the first post-selection angle and the second post-selection angle are opposite numbers; and the signal processing unit obtains the phase of the signal to be detected.

The invention discloses a device for generating Mach-Zehnder interference, a photo-thermal spectrum gas sensing device based on the device and a detection method, and belongs to the technical field of laser spectrum gas sensing. The interference device sequentially comprises an optical frequency comb and a first light beam splitter on a light transmission path; a movable arm reflector group is arranged on the light path of one light beam B in the two light beams split by the first light beam splitter, the path of the light beam B is changed through the movable arm reflector group, the light beam B intersects with the light path of the other light beam C, and a beam combiner is arranged at the intersection; the movable arm reflector group is connected with a driving mechanism, the driving mechanism is used for driving the movable arm reflector group to do linear motion, and the track of the linear motion is parallel to the straight line where the light beam B is located. The interference device does not need to use a local oscillator optical comb and a signal optical comb to carry out multi-heterodyne interference, can directly use the moving speed of a movable arm reflector group in a Mach-Zehnder interference structure to calculate a down-conversion factor, and maps each longitudinal mode of the signal optical comb in an optical frequency to a radio frequency component one by one.

The present disclosure is directed to a dual laser transceiver system. The dual laser transceiver system may comprise a dual laser, with the dual laser further comprising a first laser chip and a second laser chip, a polarization rotator and a polarization combining beam splitter. The dual laser may be coupled to a photonic integrated circuit that may comprise a polarization rotator and splitter operable to general a local oscillator and a modulator signal.

The invention discloses a wavelength division multiplexing phi-OTDR and BOTDR fusion demodulation method, system and device and a storage medium, and relates to the technical field of distributed optical fiber sensing, and the method comprises the steps: employing a double independent narrow linewidth laser to output continuous laser, enabling each path to be divided into two beams through a coupler, enabling one beam to be subjected to pulse modulation, and enabling the other beam to be used as local oscillation light; pulse light is modulated into frequency-shift pulse light through an acousto-optic modulator, and the frequency-shift pulse light is injected into a sensing optical fiber after being combined by an optical combiner. And the backscattered light is separated by the optical wave separator according to the wavelength. Rayleigh signals are subjected to coherent receiving and orthogonal demodulation to obtain light intensity; brillouin signal amplification, frequency mixing and the like are performed to extract frequency shift. In combination with light intensity and frequency shift, temperature strain is decoupled, and vibration information is demodulated; according to the invention, the measurement precision is improved, and the line potential risk can be found in time; efficient signal isolation and transmission and temperature strain decoupling measurement are achieved, and pipeline safety is guaranteed; the structure is simple and easy to expand, and long-distance, low-cost and high-precision monitoring and timely disaster early warning can be realized.

The invention belongs to the technical field of signal generation and acquisition, and particularly relates to an RFSOC-based multichannel broadband signal transmitting and receiving device, which comprises an upper computer unit, an intermediate frequency signal transmitting and receiving unit, a down-conversion unit and a local oscillator unit, and is characterized in that the upper computer unit, the intermediate frequency signal transmitting and receiving unit, the down-conversion unit and the local oscillator unit cooperatively realize signal transmission and acquisition; the upper computer unit adopts an ARM chip, communicates with the intermediate frequency signal transceiving unit through a PCIE interface, and is used for parameter configuration, flow control, state monitoring and collected data storage. The integration level can be greatly improved, complex external connection and compatible debugging are omitted, software and hardware design is remarkably simplified, and the maintenance cost is reduced; different application scenes can be adapted without changing a hardware circuit, so that the configuration flexibility is greatly improved; the power consumption is reduced, and the application requirements of miniaturization and light weight are better met; and the requirements of multi-channel synchronous transceiving and high-precision signal processing can be met.

The invention provides a hundred-time frequency range ultra-wideband frequency conversion circuit, a hundred-time frequency range ultra-wideband frequency conversion structure and a miniaturization design method of the hundred-time frequency range ultra-wideband frequency conversion circuit. The hundred-time frequency range ultra-wideband frequency conversion circuit comprises an amplitude limiting amplification circuit, the frequency division preselection filtering module is used for carrying out segmented filtering on the ultra wide band radio frequency signal so as to reduce the influence of a harmonic signal and an out-of-band spurious signal on the circuit; the multi-stage frequency mixing module is used for mixing frequency; the local oscillation module is used for driving the multi-stage frequency mixing link to perform frequency conversion; the ultra-wideband frequency conversion circuit realizes ultra-wideband frequency conversion. The invention further designs a frequency conversion structure based on the circuit, the structure adopts a ceramic three-dimensional stacked structure design, grooves are formed in corresponding ceramic tube shells, the corresponding circuits are arranged in the corresponding grooves or formed cavities, and the circuits are isolated through a sealing process; the problem of low integration level of a circuit system in the prior art is solved through the frequency conversion structure.

Arrangements for performing cellular network timing are presented. A light base station which is to serve as a timing grandmaster can be assigned. The master light base station includes a radio unit (RU) and a router, but does not include an onsite distributed unit. The router of the light base station can include a global navigation satellite system (GNSS) receiver. The distributed unit (DU) for the light base station is hosted remotely at a local data center (LDC) that communicates with the master light base station via a network. The master light base station can generate a grandmaster timing signal based on a signal received by the GNSS receiver and a clock signal of a local oscillator. The master light base station can transmit the grandmaster timing signal to LDC that hosts the DU for the master light base station and other light base stations.

The embodiment of the invention provides a quantum bit grouping method and device, a quantum computer and a measurement and control system. According to the scheme, quantum bits are grouped according to the topological relation between first quantum bits, and a first grouping result comprising a plurality of first sets is obtained; for each first set, adjusting the first quantum bit to be adjusted to a third quantum bit group to obtain a second grouping result; for each fourth quantum bit group in the second grouping result, acquiring fourth quantum bits connected with the same local oscillator source in the fourth quantum bit group to obtain a second set; and for each second set, when the maximum working frequency difference between the fourth quantum bits in the second set is greater than or equal to a preset threshold value, adjusting the second quantum bits to be adjusted to a fifth quantum bit group to obtain a third grouping result. Through the technical scheme provided by the embodiment of the invention, grouping of quantum bits on a quantum chip is realized, so that a guarantee is provided for parallel execution of quantum computing tasks.

The application belongs to the technical field of optical communication and relates to a frequency-shift-free microwave photonic channelized receiving device, which comprises a carrier light frequency comb generating unit, a local light frequency comb generating unit, an electro-optical modulation unit, an optical phase shift unit, a channel selection and spectrum processing unit and a plurality of photoelectric conversion units. The received broadband radio frequency signal is modulated on each comb tooth of the carrier light frequency comb through the electro-optical modulation unit, and the frequency alignment between the optical local oscillator and the required receiving sub-channel can be realized based on the "vernier" effect caused by the different free spectral ranges of the carrier light frequency comb and the local light frequency comb and the inherent frequency alignment of the same pump laser. The mirror image sub-channel suppression is realized based on the opposite optical phase shifts on both sides of the pump light. The application has a simple structure, omits the frequency shift and special modulation structure required for frequency alignment, effectively suppresses the inter-channel crosstalk problem in the channelized receiving process, and can flexibly increase the channelization quantity according to actual needs.

Provided herein are high-performance, compact probes for use in near-field antenna measurement, such as over-the-air antenna measurements. In particular, the probes herein simplify detection by mixing the near-field radio frequency (RF) signal with a local oscillator (LO) right at the probe plane.

The present disclosure provides an apparatus for wireless communications. The apparatus includes one or more processors; a transmit path coupled to the one or more processors comprising: a first frequency synthesizer configured to consume a first amount of power, wherein the first frequency synthesizer is configured to feed a first local oscillator (LO) signal that comprises a first frequency tone with a first phase noise profile; and a feedback receive path selectively coupled to the transmit path comprising: a second frequency synthesizer configured to consume a second amount of power less than the first amount of power, wherein: the second frequency synthesizer is configured to feed a second LO signal that comprises a second frequency tone with a second phase noise profile; the second frequency tone is offset from the first frequency tone; and the second phase noise profile comprises a wider phase profile than the first phase noise profile.

The invention discloses a small-sized wide instantaneous bandwidth radio frequency receiving front-end SiP module based on an HTCC, and belongs to the technical field of microwaves and radio frequency. The radio frequency receiving front end is realized on the basis of an SiP module of the HTCC, the mirror image frequency is far away from the radio frequency signal frequency spectrum through a high local oscillator dual-frequency conversion mode, and the spurious component generated by frequency mixing is moved to a high-frequency area outside an intermediate-frequency passband, so that wide instantaneous bandwidth and high spurious suppression are realized. According to the invention, miniaturization of the SiP module is realized based on the HTCC technology; a secondary frequency conversion superheterodyne circuit architecture and a high local oscillator design are combined, so that the instantaneous working bandwidth is widened to 4GHz, and meanwhile, high spurious suppression is realized; in addition, the vertical interconnection structure is improved, long-distance low-loss transmission of radio-frequency signals is achieved, and the size is further reduced. The ultra-wideband low-noise amplifier has the advantages of miniaturization, wide instantaneous bandwidth, low noise amplification and high spurious suppression, and a solution is provided for miniaturization and low-cost mass production of an ultra-wideband radio frequency system.