|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2008年04 期
| 标题 |
| 展宽信号检测设备频带的实用方法(44 卷) |
| 英文标题 |
| 摘要 |
| 放大电路的频带宽度主要取决于三极管本身的高频特性，选用频率特性高的三极管是展宽频带、改善高频性能的有效途径。在铁路信号产品的开发中,逐渐找到一些简单有效的补偿方法，如在移频信号综合检测仪的开发中运用了基极补偿的方法，使基于2600Hz载频的调频信号的处理得到了很 |
| 作者 |
| 新闻作者:邢〓伟，董俊兰 |
| 关键字 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 标题 |
| 展宽信号检测设备频带的实用方法(44 卷) |
| 英文标题 |
| 摘要 |
| 放大电路的频带宽度主要取决于三极管本身的高频特性，选用频率特性高的三极管是展宽频带、改善高频性能的有效途径。在铁路信号产品的开发中,逐渐找到一些简单有效的补偿方法，如在移频信号综合检测仪的开发中运用了基极补偿的方法，使基于2600Hz载频的调频信号的处理得到了很 |
| 作者 |
| 新闻作者:邢〓伟，董俊兰 |
| 关键字 |
| COPYRIGHT©2001-2025 CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED，ALL RIGHTS RESERVED | ||
|
