主题：讨论讨论六阶带通箱!!

四阶的优化设计没什么问题，六阶的优化设计需要讨论！！

听说南大沈勇教授研究出六阶带通优化设计的设计方法，但没看到过有相关论文！

强烈关注！

简单介绍一下设计思路？

这个优化问题已经在某个软件得以实现，呵呵

下面灰色是目标曲线，实线是优化出来的结果，不过到底如何，我还没有去实践过

此主题相关图片如下：

ＸＰ兄，介绍介绍它是如何计算的？

我真的不清楚它具体算法是怎样的。都是计算机编好的程序了。

反正它可以按你设定可更改的几种参数，用计算机凑出来的。

呵呵

还没完全理解楼上TANG的意思,要仔细看!!

不过,这几条曲线似乎都有点问题!!

初哥能否把另外一种的六阶带通的简化声学线路图贴一下？中间的倒相管应该和扬声器并联的吧。

这就要求中间管等效成的L值需要大，即管子细长。

爱好者用的是什么模拟软件啊?

强烈关注！

简单介绍一下设计思路？

设计思路有,但说句实话,讲出来都是数学,非常枯燥,不会太多人有兴趣的!!

A common low tune vs high tune frequency ratio is 1:3

1：3是怎么来的，有何依据，通带增益如何？

调谐频率和通带截止频率关系如何？

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=4&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=156&f=G&l=50&co1=AND&d=PTXT&s1=bose.ASNM.&OS=AN/bose&RS=AN/bose

6阶带通的优化方法还没有搞出来吗？努力！

有何优点

Frequency-stabilized two-state modulation using hysteresis control

Abstract

A two-state modulation system includes a hysteretic comparator with variable thresholds, a two-state processor and an integrating element. A summing circuit combines a signal coupled from the output of the two-state processor, the signal output, the signal input and a delay compensating signal feedback input and a feedback input from an integrating element at the output of the two-state processor. The hysteretic comparator receives a hysteresis control signal that varies the threshold. The hysteresis control signal may be provided by analog switches switched by the switching signal to provide the switched two-state levels to a low pass filter. Rectifying circuitry may also be used for supplying the hysteresis control signal. Limiters and compressors may be connected to the input with the limiter limiting levels tracking the two-state levels, and the compression proportional to the switching frequency.

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Inventors:	Froeschle; Thomas A. (Southborough, MA)
Assignee:	Bose Corporation (Framingham, MA)
Appl. No.:	07/568,532
Filed:	August 15, 1990

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Related U.S. Patent Documents

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	Application Number	Filing Date	Patent Number	Issue Date
	104558	Sep., 1987
	667830	Nov., 1984

效率与频宽这之间好好的调试呀

不能太监了，顶上去。

六阶没实际设计过，关注中