CN-122021524-A - Amplifier noise optimization method and device, storage medium and electronic equipment

CN122021524ACN 122021524 ACN122021524 ACN 122021524ACN-122021524-A

Abstract

The application discloses an amplifier noise optimization method, an apparatus, a storage medium and electronic equipment, wherein the amplifier noise optimization method comprises the steps of obtaining a topological structure, performance indexes and symmetry constraint conditions of an amplifier, constructing a Riemann manifold of a balance relation between an operating point and performance of the amplifier based on the topological structure and the performance indexes, mapping various noise sources in the amplifier into corresponding symmetry breaking modes based on symmetry analysis, executing symmetry recovery operation based on the symmetry breaking modes, generating a current parameter adjustment direction for noise suppression, and iteratively updating current design parameters on the Riemann manifold along the current parameter adjustment direction until the symmetry constraint conditions are met, so as to obtain target design parameters. The application can improve the efficiency of the noise optimization of the amplifier.

Inventors

ZHANG HAITAO
LIU YUFEI

Assignees

芯百特微电子(无锡)有限公司

Dates

Publication Date: 20260512
Application Date: 20260407

Claims (10)

1. A method for optimizing amplifier noise, comprising: obtaining topological structure, performance index and symmetry constraint condition of the amplifier; based on the topological structure and the performance index, constructing a Riemann manifold of the trade-off relation between the working point of the amplifier and the performance; Based on symmetry analysis, mapping various noise sources in the amplifier into corresponding symmetry breaking modes; based on the symmetry breaking mode, executing symmetry recovery operation, and generating a current parameter adjustment direction for suppressing noise; and iteratively updating the current design parameters along the current parameter adjustment direction on the Riemann manifold until the symmetry constraint condition is met, so as to obtain target design parameters.
2. The method for optimizing noise of an amplifier according to claim 1, wherein said constructing a Riemann manifold of an amplifier operating point versus performance trade-off relationship based on said topology and said noise performance index comprises: determining the working state of an amplifier according to the topological structure, and constructing a first Rayman manifold formed by the working state; and constructing a second Rayman manifold representing the trade-off relation between the performance indexes according to the performance indexes.
3. The amplifier noise optimization method of claim 2, wherein the performing a symmetry restoration operation based on the symmetry-breaking mode generates a current parameter adjustment direction for suppressing noise, comprising: taking the corresponding point of the current design parameter on the first sub-Riemann manifold as the current parameter point; At the current parameter point, determining a Killing vector field induced by a lie algebra generator corresponding to each symmetry breaking mode to obtain a group of basic adjustment directions; and linearly combining the basic adjustment directions based on the second Rayman manifold to generate a current parameter adjustment direction.
4. The method of amplifier noise optimization of claim 3, wherein said linearly combining each of said base adjustment directions based on said second zuman manifold, generating a current parameter adjustment direction, comprises: Mapping the basic adjustment direction to the second zuman manifold, and calculating a forward vector of the basic adjustment direction to the pareto front edge; And based on the forward vector, taking the optimization of the noise performance index on the second pariman manifold as a target, and linearly combining the basic adjustment directions to generate a current parameter adjustment direction.
5. The method for optimizing amplifier noise according to claim 3, wherein iteratively updating current design parameters along the current parameter adjustment direction on the Riemann manifold until the symmetry constraint is satisfied, obtaining a target design parameter comprises: updating the current parameter point on the first pariman manifold according to the current parameter adjustment direction; Mapping the updated current parameter point to the second Rayman manifold to obtain a corresponding current performance point; Judging whether the current design parameters corresponding to the updated current parameter points meet the symmetry constraint conditions or not based on the current performance points; If yes, determining the updated current design parameters as target design parameters; If not, updating the current parameter adjustment direction, and returning to execute the step of updating the current parameter point on the first sub-Riemann manifold according to the current parameter adjustment direction.
6. The method of amplifier noise optimization of claim 5, wherein said updating the current parameter point on the first pariman manifold based on the current parameter adjustment direction comprises: taking the current parameter adjustment direction as a tangent vector of the current parameter point; and determining an updating path according to the current parameter point and the tangent vector, and updating the current parameter point along the updating path.
7. The amplifier noise optimization method of claim 5, wherein said updating said current parameter adjustment direction comprises: Mapping the current parameter adjustment direction to the updated current parameter point through parallel transmission of the update path on the first Rayman manifold so as to obtain an inherited direction; At the updated current parameter point, performing symmetry restoration operation to generate a new direction; And based on the first Rayman manifold, linearly combining the inherited direction and the new direction to obtain an updated current parameter adjustment direction.
8. An amplifier noise optimization apparatus, comprising: The acquisition unit is used for acquiring the topological structure, the performance index and the symmetry constraint condition of the amplifier; a building unit, configured to build a Riemann manifold of a trade-off relationship between an amplifier operating point and performance based on the topology and the performance index; the analysis unit is used for mapping various noise sources in the amplifier into corresponding symmetry breaking modes based on symmetry analysis; a generating unit configured to perform a symmetry restoration operation based on the symmetry breaking mode, and generate a current parameter adjustment direction for suppressing noise; and the iteration unit is used for iteratively updating the current design parameters along the current parameter adjustment direction on the Riemann manifold until the symmetry constraint condition is met, so as to obtain the target design parameters.
9. A storage medium storing a plurality of instructions adapted to be loaded by a processor to perform the method of amplifier noise optimization of any one of claims 1-7.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of optimizing amplifier noise according to any of claims 1-7 when the computer program is executed by the processor.

Description

Amplifier noise optimization method and device, storage medium and electronic equipment Technical Field The embodiment of the application relates to the technical field of amplifiers, in particular to an amplifier noise optimization method, an amplifier noise optimization device, a storage medium and electronic equipment. Background The amplifier is a core module of a modern electronic system, and the noise performance of the amplifier directly determines the precision and sensitivity of applications such as communication, sensing and the like. Noise optimization is a typical multi-objective, strongly constrained, complex problem in deep submicron and rf integrated circuit designs, where designers must make a fine trade-off between multiple conflicting performance metrics such as Noise Figure (NF), linearity (e.g., IIP 3), gain, power consumption, and stability. However, the current conventional method for optimizing the noise of the amplifier is seriously dependent on experience of engineers and a large number of iterative simulations, so that the period of optimizing the noise of the amplifier is long, and it is difficult to ensure that a global or near global optimal solution is obtained. Disclosure of Invention The embodiment of the application provides an amplifier noise optimization method, an amplifier noise optimization device, a storage medium and electronic equipment, which can improve the efficiency of amplifier noise optimization. In a first aspect, an embodiment of the present application provides a method for optimizing noise of an amplifier, including: obtaining topological structure, performance index and symmetry constraint condition of the amplifier; based on the topological structure and the performance index, constructing a Riemann manifold of the trade-off relation between the working point of the amplifier and the performance; Based on symmetry analysis, mapping various noise sources in the amplifier into corresponding symmetry breaking modes; based on the symmetry breaking mode, executing symmetry recovery operation, and generating a current parameter adjustment direction for suppressing noise; and iteratively updating the current design parameters along the current parameter adjustment direction on the Riemann manifold until the symmetry constraint condition is met, so as to obtain target design parameters. In the method for optimizing the noise of the amplifier provided by the embodiment of the application, the step of constructing the Riemann manifold of the trade-off relation between the working point and the performance of the amplifier based on the topological structure and the noise performance index comprises the following steps: determining the working state of an amplifier according to the topological structure, and constructing a first Rayman manifold formed by the working state; and constructing a second Rayman manifold representing the trade-off relation between the performance indexes according to the performance indexes. In the method for optimizing the noise of the amplifier provided by the embodiment of the application, the step of executing symmetry restoration operation based on the symmetry breaking mode to generate the current parameter adjustment direction for suppressing the noise comprises the following steps: taking the corresponding point of the current design parameter on the first sub-Riemann manifold as the current parameter point; At the current parameter point, determining a Killing vector field induced by a lie algebra generator corresponding to each symmetry breaking mode to obtain a group of basic adjustment directions; and linearly combining the basic adjustment directions based on the second Rayman manifold to generate a current parameter adjustment direction. In the method for optimizing the noise of the amplifier provided by the embodiment of the present application, the generating the current parameter adjustment direction by linearly combining the basic adjustment directions based on the second sub-Riemann manifold includes: Mapping the basic adjustment direction to the second zuman manifold, and calculating a forward vector of the basic adjustment direction to the pareto front edge; And based on the forward vector, taking the optimization of the noise performance index on the second pariman manifold as a target, and linearly combining the basic adjustment directions to generate a current parameter adjustment direction. In the method for optimizing the noise of the amplifier provided by the embodiment of the present application, iteratively updating the current design parameters along the current parameter adjustment direction on the Riemann manifold until the symmetry constraint condition is satisfied, to obtain the target design parameters, including: updating the current parameter point on the first pariman manifold according to the current parameter adjustment direction; Mapping the updated current parameter point to the second Rayman manifo