Multi-order M sequence generation circuit

A technology for generating circuits and M-sequences, applied in pulse train generators and other directions, can solve the problem of high device cost and achieve the effects of good stability, low cost and high reliability

Inactive Publication Date: 2012-07-11
北方通用电子集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another way to generate M-sequences is to use high-end FPGAs, which can generate M-sequences up to 6 GHz, but the cost of devices required by this method is relatively high

Method used

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  • Multi-order M sequence generation circuit
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  • Multi-order M sequence generation circuit

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Embodiment Construction

[0013] The present invention will be further described below with reference to the specific drawings and embodiments.

[0014] In order to enable the M-sequence generating circuit to output the required M-sequence stably and reliably, the present invention includes a trigger circuit and an XOR gate correspondingly connected to the trigger circuit, and the XOR gate is connected to the trigger circuit through at least one microstrip line. After being connected to each other, after delaying the required time through the microstrip line, the trigger circuit outputs the required M sequence. When the XOR gate is connected to the trigger circuit through the microstrip line, the precise delay characteristic of the microstrip line avoids the uncertain delay of the high-speed gate circuit in the traditional circuit, and the controllable delay time of the microstrip line is used. The operating frequency of the M sequence is increased, and the number of gate circuits in the trigger circui...

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Abstract

The invention relates to a multi-order M sequence generation circuit, which comprises a trigger circuit and an XOR gate correspondingly connected with the trigger circuit through at least one microstrip line, wherein after the XOR gate is delayed by the microstrip line for required time, the trigger circuit outputs a required M sequence. The XOR gate is connected with the trigger circuit through at least one microstrip line; after the XOR gate is delayed by the microstrip line for required time, the trigger circuit outputs the required M sequence; the multi-order M sequence generation circuit has high frequency, namely a clock frequency of the GHz level can be realized easily, is low in cost, and the number of required devices is small, namely, the multi-order M sequence is realized by only using three D triggers and the XOR gate; the multi-order M sequence generation circuit has high reliability and high stability, can be applied to the fields of communication and radars; according to the high-frequency multi-order M sequence generation circuit constructed by the microstrip line, the problems of low storage frequency and debugging difficulty are solved; and the multi-order M sequence generation circuit can be widely applied to various high-frequency signal generation circuits.

Description

technical field [0001] The invention relates to a sequence generating circuit, in particular to a multi-order M sequence generating circuit, which belongs to the technical field of sequence generating circuits. Background technique [0002] like figure 1 Shown: is the structural schematic diagram of the existing 9-order M-sequence generating circuit. Among them, the existing 9th-order M-sequence generating circuit uses 9 D flip-flops and 1 XOR gate to realize the generation of M-sequence. The Q terminal of trigger a8 is connected with the D terminal of trigger a7, the Q terminal of trigger a7 is connected with the D terminal of trigger a6, the Q terminal of trigger a6 is connected with the D terminal of trigger Q5, and the Q terminal of trigger a5 The terminal is connected to the D terminal of the trigger a4, the Q terminal of the trigger a4 is connected to the D terminal of the trigger a3, the Q terminal of the trigger a3 is connected to the D terminal of the trigger a2, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K3/64
Inventor 韩盈春叶述平张磊张成裕
Owner 北方通用电子集团有限公司
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