Anti-irradiation high-order high-speed parameter-reconstructable FIR filter design method and system

A filter design, anti-radiation technology, applied in the field of satellite navigation, can solve the problems of inability to meet the needs of the design, large resource consumption, large operation delay, etc., to achieve less resource occupation, high running speed, and fast running speed Effect

CN108964635AActive Publication Date: 2018-12-07XIAN INSTITUE OF SPACE RADIO TECH
6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-12-07

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses an anti-irradiation high-order high-speed parameter-reconstructable FIR filter design method and system. The anti-irradiation high-order high-speed parameter-reconstructable FIR filter design method includes the following steps: 1) according to a task demand, determining an order N of an FIR filter; 2) according to an FPGA model, determining the number L of multiply add accumulators (MAC) contained in one column of MACs; 3) if N <=L, completing design of the filter by using a low-order FIR filter design method based on a hard core of MAC; and 4) if N>L, completing design of the filter by using a high-order FIR filter design method based on a hard core of MAC. The anti-irradiation high-order high-speed parameter-reconstructable FIR filter design method and system hasthe advantages of high operation speed, few occupied resources and high order, and is suitable for design of a satellite payload FIR filter.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of satellite navigation, and in particular relates to a design method and system for an anti-irradiation high-speed high-speed parameter reconfigurable FIR filter. Background technique

[0002] Because of its simple structure and linear phase characteristics, FIR filters are widely used in the design of various navigation and communication satellite payloads. At present, the realization of the FIR filter in the FPGA is mostly realized by combining the hard core of the multiplier in the FPGA and SLICE. This method uses the hard core of the multiplier to realize the multiplication function, and the SLICE realizes the addition function. This method is intuitive and simple to implement, but it has the disadvantages of low running speed, large resource consumption, low order, susceptible to the influence of space radiation and FIR filter parameters cannot be reconfigured. In detail, the FIR filter used on the sa...

Examples

Embodiment Construction

[0053] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0054] This embodiment provides a method for designing an anti-irradiation high-speed high-speed parameter-reconfigurable FIR filter, the method comprising th...