12 results about "Multiple antenna" patented technology

A system and method for an antenna which is constructed into or conforming onto the roof or wall of a cargo container is provided. The antenna system may have multiple antennas for short range wireless, cellular, global positioning, or satellite built into a single functional element. The antenna system may utilize a patch or phased array design. The method of construction of the antenna system may as part of the container fabricated or installed at the factory, applied as an adhesive film kit, or applied as a successive spray coating and etching process.

An S/P converting section (101) converts input transmission signals A1, A2, B1, B2, . . . , K1, K2 to parallelized data, separated in individual transmission lines. Spreading sections (102, 103) spread the respective data under control of a spread control section (107). Adding sections (104-1, 104-2) multiplex spread data. Transmitting sections (105-1, 105-2) provide radio transmission processing to the multiplexed signals, and transmit the data via antennas (106-1, 106-2) by radio. The spread control section (107) controls the spreading methods in the spreading sections (102, 103) based on channel quality. This makes it possible to improve error rate characteristics of the received signal and as maintain spectrum efficiency when varying data is transmitted from multiple antennas.

The invention proposes a wireless communication apparatus and its method. The wireless communication apparatus comprises: multiple antennas, a multiple-antenna signal processing module, a RF signal processing module and a baseband processing module. The multiple-antenna signal processing module is designed to combine multiple RF signals received from the multiple antennas into a single RF signal. The RF signal processing module is designed to convert the combined single RF signal into a single baseband signal. The baseband processing module is designed to perform baseband processing on the single baseband signal. This wireless communication apparatus realizes a multi-antenna system by simply inserting a multiple-antenna signal processing module into a typical singleantenna system. Both the RF signal processing module and baseband processing module of existing single-antenna system remain unchanged. Therefore, the redesign process is greatly simplified, which results in remarkable reduction of design difficulty and implementation cost.

The invention discloses a phased array circular array antenna system which comprises a circular array antenna. The circular array antenna comprises a circular metal reflector and an antenna unit fixedon the circular metal reflector. Multiple antenna unit groups are distributed along the circumference of the circular metal reflector. A row of antenna elements in the horizontal direction of the circular array antenna is connected to different RF switches according to a certain order, output ends of all RF switch in a row are connected the same secondary power splitter, and an output end of thesecondary power splitter is connected to a phase shifter to form a horizontal antenna array. According to the invention, the non-mechanical signal search and tracking is realized, the directional diagram scanning and tracking of 360 degrees in a horizontal direction and 90 degrees in a vertical direction are carried out on a signal in movement, the search and tracking of the signal are achieved through electric scanning, the reliability is good, the capture time of an electric scanning signal can be calculated in milliseconds, a beam can be changed, different directions can be pointed in scanning and tracking, and complex networking such as relaying can be achieved.

The embodiment of the invention discloses an LTE receiving channel delay correction method, a device and a base station with the device. The method comprises the steps of receiving uplink sounding signals of multiple users with multiple antennas; selecting a user from multiple users as a set user, and according to the uplink sounding signal of the set user acquiring the power delay spectrum of the set user in each receiving channel; according to the power delay spectrum of each receiving channel respectively acquiring the delay value of each receiving channel; and according to the delay value of each receiving channel respectively carrying out delay adjustment on each receiving channel. In this embodiment, the characteristic that the LTE system needs to employ the sounding signal of the user and a power delay spectrum estimation algorithm to compute the PDP estimation so as to obtain the power delay spectrum is employed, and then the delay adjustment value is obtained according to the power delay spectrum, thus the delay correction of the radio frequency receiving channel in the base station is realized.

The invention provides a radio frequency interference suppression method for a high frequency surface wave radar based on tensor subspace projection. Depending on the distance correlation and direction characteristics of radio frequency interference, joint estimation is performed on a radio frequency interference subspace from multiple dimensions by tensor decomposition. The implementation processcomprises the following steps: performing Doppler sliding window processing based on radar data to finish data segmentation; performing radio frequency interference detection; judging whether interference frequency points exist in a currently-selected data block or not; if radio frequency interference exists, constructing a third-order tensor by using long-distance metadata without sea echo of multiple antenna channels to serve as a training tensor; performing tensor decomposition on the training tensor by using high-order singular value decomposition; estimating a radio frequency interference subspace; and performing distance sliding window and subspace projection processing to obtain data without radio frequency interference. The method can suppress radio frequency interference to a great extent, improve data quality and retain a target signal completely, has a good application effect, improves the detection performance of a radar system, and has important practical application value.

The invention discloses a technical project which uses multiple antennas and realizes synchronization in a multi-antenna environment. The invention distributes an antenna address code to each antenna in a base station and denotes the antenna address code of the used antenna to a mobile external. According to the antenna address code denoted by the base station, the mobile terminal demodulates and obtains the data on the antenna distributed by the base station. In the technical project of the invention, because each antenna in the multiple antennas has respective antenna address code, the mobile terminal can distinguish each antenna and get the corresponding data from the antenna used by the terminal in addition to making the use of the space gain brought by the multiple antennas by denoting the antenna address code of the antenna used by the mobile terminal to the mobile terminal. At the same time, the requirement that consumers or operations are measured off on the antennas can be satisfied.

The invention discloses an adaptive threshold adjusting method for a non-contact intelligent card demodulation system. An additionally-arranged adaptive threshold adjusting circuit in a non-contact IC card is utilized for accomplishment. The adaptive threshold adjusting circuit determines whether a threshold is appropriate according to the number of zeros in a zero number counter. After stabilization of a power-on simulation front end circuit, adjustment is carried out from a greatest threshold downwards, the great number of the zeros means that the threshold is too great, burr generation occurs, a fixed threshold step length is subtracted from a present threshold, after accomplishment of threshold switching of the simulation circuit, next determination is carried out continuously, till the number of the zeros reaches a prescribed range, the threshold reaches an optimum one, or demodulation for a smallest threshold is carried out. According to the adaptive threshold adjusting method, in a field intensity range of 1.5A/m-7.5A/m, for multiple antenna waveforms prescribed in an ISO/IEC14443TypeA protocol, a comparator threshold can be automatically selected, and demodulation data with pause width close to 3mus is outputted.

The invention discloses a radio frequency circuit and electronic equipment, and belongs to the technical field of communication. The radio frequency circuit comprises a radio frequency transceiver, a first transceiving circuit, a second transceiving circuit, a third transceiving circuit, a switching device group and an antenna group, the radio frequency transceiver is respectively connected with the first end of the first transceiving circuit, the first end of the second transceiving circuit and the first end of the third transceiving circuit; the second end of the first transmit-receive circuit, the second end of the second transmit-receive circuit and the second end of the third transmit-receive circuit are connected with the antenna group through the switching device group, wherein the switching device group comprises a plurality of double-pole double-throw switches. The radio frequency transceiver of the electronic equipment can be connected with the antenna group through the multiple double-pole-double-throw switches, signals sent by the radio frequency transceiver are switched among the multiple antennas in the antenna group through the multiple double-pole-double-throw switches, the sizes of the double-pole-double-throw switches are small, the radio frequency transmitting and receiving performance of the mobile terminal is improved, the radio frequency power consumption can be reduced.

The invention relates to network side equipment, user equipment, a wireless communication method and a storage medium. The network side equipment disclosed by the invention comprises a processing circuit configured to configure a transmitting beam used for transmitting an uplink signal for the user equipment from a plurality of transmitting beams on a plurality of antenna plates of the user equipment; and generating configuration information, wherein the configuration information indicates a transmission beam for transmitting the uplink signal. According to the network side equipment, the userequipment, the wireless communication method and the storage medium, the network side equipment can inform the user equipment of the selected uplink transmitting beam under the condition that the user equipment is provided with the multiple antenna plates, and therefore the determining process of the uplink transmitting beam is optimized.