7 results about "Filter tuning" patented technology

The invention provides a model training method combining parameter adjustment record screening and a large model and a related product. According to one specific mode of the method, simplified historical parameter adjustment records are obtained through screening from historical parameter adjustment records. And analyzing a change rule of the simplified historical parameter adjustment record by using the large model, outputting a next round of hyper-parameter configuration, and performing a next round of training by using the next round of hyper-parameter configuration. Therefore, the method can reduce the number of tokens for large model analysis, improve the speed of generating the next-round hyper-parameter configuration, enable the next-round hyper-parameter configuration to be explained, and determine the feature distance between two hyper-parameter configurations through the feature sensitivity of each hyper-parameter based on the target machine learning model to the training evaluation result. And parameter adjustment records are screened based on the characteristic distance between the hyper-parameter configurations, so that high-value simplified parameter adjustment records can be obtained. The lower round of hyper-parameter configuration obtained by utilizing a large model and based on a more representative high-value simplified parameter adjustment record is easier to understand and more stable.

A test and measurement instrument connects to one or more devices under test (DUT) having tuning screws, and to a robot, and has one or more processors to: command the robot to position the tuning screws on the DUTs to one or more sets of positions, each set of positions being a parameter set for the tuning screws, acquire a set of operating parameters for each parameter set from the DUTs, generate a parameter set image for each set, create a combined image of the parameter set images, provide the combined image to a machine learning system to obtain a predicted set of values, adjust the predicted set of values to produce a set of predicted positions, command the robot to position the tuning screws to positions in the set of predicted positions, obtain a set of tuned operating parameters from the DUTs, and validate operation of the DUTs.

The application relates to a band-pass filter, a filter frequency modulation method and a frequency modulation device. The band-pass filter comprises a signal layer, a first ground layer and a second ground layer arranged from top to bottom; the signal layer and the first ground layer are coupled and connected through a first dielectric unit; the first ground layer and the second ground layer are coupled and connected through a second dielectric unit, and a metal probe penetrating through the second dielectric unit is arranged between the first ground layer and the second ground layer; the number and position of the metal probe are used for adjusting the filtering frequency band of the band-pass filter on the signal. The band-pass filter can adjust the working frequency band through the probe, and the scene applicability of the band-pass filter can be improved.

The invention relates to the technical field of filter detection devices, and discloses a filter tuning screw material detection device which comprises a detection screw and a second nut, the second nut is in threaded connection with the outside of the detection screw, a stud is arranged in an inner cavity of the detection screw, a magnet is arranged outside the stud, and the magnet is in threaded connection with the detection screw. A spring is arranged in an inner cavity of the detection screw rod, a third screw is in threaded connection with the outside of the detection screw rod, a gasket is arranged between the third screw and the detection screw rod, a second screw is arranged at the top of the detection screw rod, a first screw is arranged in an inner cavity of the second screw, and a first nut is in threaded connection with the outside of the first screw. The filter tuning screw material detection device ensures that screws made of corresponding materials are installed at different positions of a filter, and stabilizes the signal frequency of the filter. Meanwhile, the device is simple in structure and convenient to operate, the detection difficulty of production personnel is reduced, the detection efficiency is improved, and inconvenience brought to filter production by misloading is reduced.

While achieving resonance suppression, allocation of filters is determined in a manner that satisfies a constraint on the number of filters. A control assistance device that performs assistance for setting a plurality of first filters provided in a servo control device that controls a motor, the control assistance device including: a resonance detection section that detects a plurality of resonance points in a frequency characteristic of an input-output gain and a phase lag of an input and an output of the servo control device measured from an input signal and an output signal that vary with frequency; a filter setting section that sets a plurality of second filters that exceed the number of the plurality of filters in order to suppress the plurality of resonance points; and a grouping section that groups the plurality of second filters to set the plurality of first filters.

The application provides a cavity filter tuning method and a tuning device, and belongs to the technical fields of microwave communication and filter. The cavity filter tuning method comprises the following steps: preparing a cavity filter; applying a spinning pressure to a region of a cover corresponding to a resonator assembly in a direction towards the resonator assembly, so that the region of the cover corresponding to the resonator assembly plastically deforms in a direction towards the resonator assembly to form a plastic deformation region, and the distance between the plastic deformation region and the resonator assembly reaches a preset distance. The tuning device comprises a loading disc, a first power part and at least one loading ram. The loading ram is connected with the loading disc and deviates from the central axis of the loading disc. The first power part is connected with the loading disc to rotate the loading disc along the central axis of the loading disc, and then the loading ram rotates to press against the cover to form the plastic deformation region. The method and device aim to solve the technical problem of repeated iteration and complexity in tuning in the prior art.

This application relates to the technical field of communication equipment testing and discloses a cavity filter tuning fixture. The fixture includes a test base, a tuning fixing block, and a tuning clamp. The filter under test (DUT) is placed on top of the test base, and the tuning fixing block is mounted on top of the DUT. The tuning fixing block is detachably connected to the test base, and the tuning clamp is movably connected to the bottom of the test base. The tuning fixing block has a first guide hole, and the top interface of the DUT is inserted into the bottom end of the first guide hole. A test cable interface passes through the top end of the first guide hole and connects to the top interface of the DUT. A guide step protrudes from the top of the test base, and the guide step has a second guide hole. The guide step is inserted into the bottom interface of the DUT, and another test cable interface passes through the bottom end of the second guide hole and connects to the bottom interface of the DUT. The tuning clamp engages with the test cable interface. This application enables rapid installation of 5G filters onto the test fixture, saving assembly time and improving production efficiency.