A multi-channel filter
By adopting a modular design and collaborative architecture for multi-channel filters, dynamic adaptive signal processing is achieved, which improves the accuracy and anti-interference capability of signal processing, while reducing energy consumption and solving the problem of insufficient dynamic adaptability in existing technologies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING BENYIJIE COMM EQUIP CO LTD
- Filing Date
- 2025-07-05
- Publication Date
- 2026-06-23
AI Technical Summary
Existing multi-channel filters lack dynamic adaptability and struggle to respond in real time to rapid changes in the channel environment, leading to degraded signal processing performance.
By employing a bidirectional connection of an adjustable parameter filtering module, a crosstalk compensation module, and a low-power control module, combined with a collaborative architecture of a DSP chip, a high-speed data bus, and a filtering unit, dynamic adaptive adjustment and crosstalk suppression are achieved. Energy consumption is reduced through parallel hardware design and sleep control.
It improves the accuracy and anti-interference capability of signal processing, reduces system energy consumption, meets the low power consumption requirements of equipment, and improves the system's response speed and processing accuracy in complex electromagnetic environments.
Smart Images
Figure CN224401502U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of signal processing technology, and in particular to a multi-channel filter. Background Technology
[0002] Multichannel signal processing technology is of great significance for improving signal transmission quality and processing efficiency. Existing technologies can perform preliminary decomposition of composite signals through multiple filters to meet the needs of different applications.
[0003] In modern electronic systems, multi-channel signal processing technology is crucial for improving signal transmission quality and processing efficiency. Existing technologies can achieve preliminary decomposition of composite signals using multiple filter banks, basically meeting the basic requirements of diverse application scenarios. However, existing multi-channel filters generally suffer from insufficient dynamic adaptability, making it difficult to respond in real time to rapid changes in the channel environment. In complex and ever-changing communication scenarios, their signal processing performance will significantly degrade. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a multi-channel filter, which aims to improve the problems of poor dynamic adaptability and inability to respond to changes in the channel environment in real time.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-channel filter, comprising an adjustable parameter filtering module and a crosstalk compensation module, wherein the adjustable parameter filtering module and the crosstalk compensation module are bidirectionally electrically connected, and the adjustable parameter filtering module is bidirectionally electrically connected to a low-power control module.
[0006] The above technical solution involves bidirectional connections between multiple modules, dynamic parameter adjustment by an adjustable parameter module, and crosstalk compensation to suppress crosstalk, thereby improving the accuracy of signal processing.
[0007] Preferably, the low-power control module includes a low-power DSP chip, a low-power filtering element, and a sleep control unit, wherein the sleep control unit is bidirectionally electrically connected to the adjustable parameter filtering module.
[0008] The above technical solution involves a low-power control module containing a low-power DSP, filtering components, and a sleep control unit, which is bidirectionally connected to an adjustable parameter module. This reduces energy consumption by controlling the hardware power state and sleep mode.
[0009] Preferably, the adjustable parameter filtering module includes a DSP chip, a high-speed data bus, and a filtering unit.
[0010] The above technical solution involves the DSP chip analyzing signal characteristics and calculating filtering parameters, which are then transmitted to the filtering unit via a high-speed data bus for real-time filtering adjustment, thereby improving the accuracy and flexibility of signal processing.
[0011] Preferably, the crosstalk compensation module includes a dedicated filtering hardware unit, the input of which simultaneously receives the original signal and the output signal of the filtering unit in the adjustable parameter filtering module.
[0012] The above technical solution involves the dedicated filtering hardware unit receiving both the original signal and the output signal from the filtering unit in the adjustable parameter filtering module at its input. By comparing the differences between the two, crosstalk components are detected and compensated simultaneously, thereby improving signal isolation.
[0013] Preferably, the output terminal of the sleep control unit is electrically connected to the control terminal of the low-power DSP chip and the control terminal of the low-power filter element, respectively, and the input terminal of the sleep control unit receives the signal from the low-power filter element and the working status signal of the adjustable parameter filter module, respectively.
[0014] The above technical solution controls the hardware power supply by detecting the presence or absence of signals and the working status, thereby achieving sleep mode and reducing energy consumption.
[0015] Preferably, the DSP chip is bidirectionally electrically connected to the high-speed data bus, and the high-speed data bus is bidirectionally electrically connected to the filtering unit.
[0016] The above technical solution involves bidirectional connection between the DSP chip and the high-speed data bus to transmit filtering parameters and status feedback, and bidirectional connection between the high-speed data bus and the filtering unit to enable parameter configuration and filtering behavior adjustment, thereby achieving real-time adaptive optimization of signal processing.
[0017] Preferably, the dedicated filtering hardware unit and the filtering unit of the adjustable parameter filtering module adopt a parallel hardware architecture, and the signal input terminals of the dedicated filtering hardware unit and the filtering unit of the adjustable parameter filtering module are electrically connected to the output terminal of the front-end signal.
[0018] The above technical solution employs a parallel hardware architecture for the dedicated filtering hardware unit and the adjustable parameter filtering module, which are electrically connected to the front-end signal output to synchronously process signals of the same origin, thereby improving the isolation in complex signal environments.
[0019] Preferably, the adjustable parameter filtering module includes multiple sets of filtering units configured in parallel.
[0020] Through the above technical solution, multiple filtering units can simultaneously process multi-frequency signals, and the processing efficiency can be improved by adjusting independent parameters.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, through the bidirectional connection of the adjustable parameter filtering module, the crosstalk compensation module and the low power control module, and the collaborative architecture of the DSP chip, high-speed data bus and filtering unit in the adjustable parameter filtering module, combined with the parallel hardware design of the crosstalk compensation module and the main filtering unit and the configuration of multiple sets of parallel filtering units, dynamic adaptive adjustment of signal parameters and crosstalk suppression of high-density composite signals are realized, thereby improving the accuracy of signal processing and anti-interference capability.
[0023] 2. In this utility model, by connecting the low-power DSP chip and low-power filtering element in the low-power control module with the sleep control unit, and by connecting the sleep control unit to the control terminal of the low-power hardware and collecting the working status signal in real time, the system energy consumption optimization control is realized, resource occupation is reduced, and the low power consumption requirements of the equipment are met. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall module connection of a multi-channel filter proposed in this utility model;
[0025] Figure 2 This is a block diagram of an adjustable parameter filtering module for a multi-channel filter proposed in this utility model.
[0026] Figure 3 This is a block diagram of a crosstalk compensation module for a multi-channel filter proposed in this utility model;
[0027] Figure 4 This is a block diagram of a low-power control module for a multi-channel filter proposed in this utility model. Detailed Implementation
[0028] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0029] Reference Figures 1-3This utility model provides an embodiment of a multi-channel filter, including an adjustable parameter filtering module and a crosstalk compensation module. The adjustable parameter filtering module and the crosstalk compensation module are bidirectionally electrically connected, and the adjustable parameter filtering module is also bidirectionally electrically connected to a low-power control module. The adjustable parameter filtering module includes a DSP chip, a high-speed data bus, and a filtering unit. The crosstalk compensation module includes a dedicated filtering hardware unit, the input of which simultaneously receives the original signal and the output signal of the filtering unit in the adjustable parameter filtering module. The DSP chip is bidirectionally electrically connected to the high-speed data bus, and the high-speed data bus is bidirectionally electrically connected to the filtering unit. The dedicated filtering hardware unit and the filtering unit of the adjustable parameter filtering module adopt a parallel hardware architecture, and the signal input terminals of the dedicated filtering hardware unit and the filtering unit of the adjustable parameter filtering module are electrically connected to the output terminal of the front-end signal. The adjustable parameter filtering module contains multiple sets of parallel-configured filtering units.
[0030] Specifically, the adjustable parameter filtering module and the crosstalk compensation module establish a collaborative working mechanism through a bidirectional electrical connection, enabling real-time interactive transmission of main signal characteristics and crosstalk parameters. This interaction allows the system to dynamically adjust its processing strategy according to the real-time signal environment, forming adaptive closed-loop control. In complex electromagnetic environments, this mechanism can automatically identify interference characteristics and optimize filtering parameters, improving the system's response speed and processing accuracy to sudden interference. Inside the adjustable parameter filtering module, the DSP chip serves as the core control unit, establishing a low-latency communication link with the filtering unit through a high-speed data bus. This bidirectional connection supports the DSP to transmit dynamic configuration parameters to the filtering unit in real time and can also simultaneously obtain... The system takes feedback on the working status of the filtering unit to form a real-time closed loop from parameter adjustment to effect feedback. When the characteristics of the input signal change, the DSP can quickly complete the algorithm calculation and update the filtering parameters, enabling the system to quickly adapt to non-stationary signal environments. The dedicated filtering hardware unit of the crosstalk compensation module adopts a dual-input design, simultaneously receiving the original signal and the output signal of the adjustable parameter filtering module. By comparing the two signals, the dedicated filtering hardware unit can accurately extract the crosstalk component and generate a compensation signal in real time. Based on the differential comparison compensation strategy, it exhibits good interference suppression capability in high-density signal environments. The dedicated filtering hardware unit and the adjustable parameter filtering module... The wave unit adopts a parallel hardware architecture, with both connected to the front-end signal output. This parallel processing design allows the two processing paths to cooperate according to signal characteristics. The filtering unit is responsible for optimizing the main signal, while the dedicated filtering hardware unit focuses on extracting and compensating for crosstalk components. Furthermore, the parallel architecture provides redundancy and fault tolerance; if one path fails, the other can still maintain basic signal processing, improving system reliability and stability. Multiple parallel filtering units in the adjustable parameter filtering module are connected to a high-speed data bus via independent data channels, forming multi-band parallel processing capabilities. This design enables the system to simultaneously process signals from different frequency bands. This design avoids the mutual interference and processing delay between frequency bands in traditional single-channel architectures. In radio systems, it can support the simultaneous reception and processing of signals from multiple communication protocols, achieving multi-mode compatibility. In addition, the independent power supply and dynamic scheduling mechanism of the parallel filtering unit can intelligently adjust the number of working units according to the actual signal load, minimizing energy consumption while ensuring processing performance and extending the battery life of mobile devices. This multi-level parallel processing architecture, combined with an adaptive control mechanism, makes the entire system adaptable to complex and ever-changing signal environments, achieving full automation from signal acquisition and filtering to interference compensation, and providing reliable signal processing for electronic systems.
[0031] Reference Figures 2-4The low-power control module includes a low-power DSP chip, a low-power filter element, and a sleep control unit. The sleep control unit is bidirectionally electrically connected to the adjustable parameter filter module. The output of the sleep control unit is electrically connected to the control terminal of the low-power DSP chip and the control terminal of the low-power filter element, respectively. The input of the sleep control unit receives the signal from the low-power filter element and the working status signal from the adjustable parameter filter module, respectively.
[0032] Specifically, the sleep control unit interacts with the adjustable parameter filter module in real time via a bidirectional electrical connection, providing operating status signals. Its output is electrically connected to the control terminals of the low-power DSP chip and the low-power filter element, respectively, while its input receives the signal amplitude detection results from the low-power filter element and the operating status feedback from the adjustable parameter filter module. By sending control signals to the control terminals of the low-power DSP chip and the low-power filter element through the sleep control unit, power supply to unnecessary circuits is cut off. This, combined with the sleep mechanism, enables power consumption regulation. Simultaneously, the energy-saving mode is dynamically adjusted based on the operating status of the adjustable parameter filter module, thereby reducing overall energy consumption.
[0033] Working principle: The DSP chip in the adjustable parameter filtering module interacts bidirectionally with the filtering unit through a high-speed data bus, analyzes the signal spectrum in real time and sends filtering parameters. The filtering unit synchronously feeds back its working status, forming a dynamic closed loop of parameter calculation-adjustment-feedback. The dedicated filtering hardware unit of the crosstalk compensation module and the filtering unit of the adjustable parameter module adopt a parallel architecture and jointly access the original front-end signal. By comparing the main filter output with the original signal, crosstalk components are extracted and compensated to the filtering unit through hardware feedback lines to suppress adjacent channel interference. The low-power control module and the adjustable parameter module transmit status signals and energy-saving commands bidirectionally. Combined with the independent channel design of multiple sets of parallel filtering units, while realizing multi-band parallel processing, dynamic parameter adaptation and crosstalk suppression are completed through inter-module collaboration, improving the accuracy of signal processing and anti-interference capability.
[0034] The sleep control unit is electrically connected to the power enable terminal of the low-power DSP chip and the power adjustment terminal of the low-power filter element via pins. At the same time, it receives the signal amplitude of the filter element and the working status of the adjustable parameter module through the ADC sampling line. When no signal input or low power demand is detected, the sleep control unit sends a PWM pulse width modulation signal to the filter element, cuts off the unnecessary power supply to the low-power DSP chip, and enters the hardware-level sleep mode. When the signal is restored, the module is woken up through the sampling line to realize the closed-loop control of status detection-command issuance-power adjustment. By combining low-power hardware components and sleep control logic, the system power consumption is reduced without affecting the filtering performance.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-channel filter, comprising an adjustable parameter filtering module and a crosstalk compensation module, characterized in that: The adjustable parameter filtering module is bidirectionally electrically connected to the crosstalk compensation module, and the adjustable parameter filtering module is bidirectionally electrically connected to the low power control module.
2. A multi-channel filter according to claim 1, characterized in that: The low-power control module includes a low-power DSP chip, a low-power filtering element, and a sleep control unit. The sleep control unit is bidirectionally electrically connected to the adjustable parameter filtering module.
3. A multi-channel filter according to claim 1, characterized in that: The adjustable parameter filtering module includes a DSP chip, a high-speed data bus, and a filtering unit.
4. A multi-channel filter according to claim 1, characterized in that: The crosstalk compensation module includes a dedicated filtering hardware unit, the input of which simultaneously receives the original signal and the output signal of the filtering unit in the adjustable parameter filtering module.
5. A multi-channel filter according to claim 2, characterized in that: The output terminal of the sleep control unit is electrically connected to the control terminal of the low-power DSP chip and the control terminal of the low-power filter element, respectively. The input terminal of the sleep control unit receives the signal from the low-power filter element and the working status signal of the adjustable parameter filter module, respectively.
6. A multi-channel filter according to claim 3, characterized in that: The DSP chip is bidirectionally electrically connected to the high-speed data bus, and the high-speed data bus is bidirectionally electrically connected to the filtering unit.
7. A multi-channel filter according to claim 4, characterized in that: The dedicated filtering hardware unit and the filtering unit of the adjustable parameter filtering module adopt a parallel hardware architecture. The signal input terminals of the dedicated filtering hardware unit and the filtering unit of the adjustable parameter filtering module are electrically connected to the output terminal of the front-end signal.
8. A multi-channel filter according to claim 3, characterized in that: The adjustable parameter filtering module includes multiple sets of filtering units configured in parallel.