• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied optics >Linearization of the frequency sweep of a frequency-modulated continuous-wave semiconductor laser radar and the resulting ranging performance
【24h】

Linearization of the frequency sweep of a frequency-modulated continuous-wave semiconductor laser radar and the resulting ranging performance

机译：调频连续波半导体激光雷达扫频的线性化及其测距性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The performance of a frequency-modulated continuous-wave (FMCVW) semiconductor laser radar has been examined. Frequency modulation (linear chirp) has been studied experimentally in detail.To create a linear frequency sweep, we modified the modulating function according to the measured frequency response of the laser, using an arbitrary function generator. The measurements indicate the possibility of achieving a spectral width of the signal peak that is transform limited rather than limited by the frequency modulation response of the laser, which permits the use of a narrow detection bandwidth. The narrow width results in a relatively high signal-to-noise ratio for low output power and thus We have also in relatively long-range and high-range accuracy. performed measurements of a diffuse The maximum range,range accuracy, target to determine the performance of a test laser radar system.The maximum range,range accuracy, and speed accuracy for a semiconductor laser with an output power of 10 mW and a linewidth of 400 kHz are presented. The influence of the laser's output power and coherence length on the performance of a semiconductor-laser-based FMCW laser radar is discussed. # 1999 Optical Society of America OCIS codes: 120.0280, 280.3400.
机译：已经研究了调频连续波（FMCVW）半导体激光雷达的性能。对频率调制（线性线性调频）进行了详细的实验研究，为了创建线性频率扫描，我们使用任意函数发生器根据所测得的激光频率响应来修改调制函数。测量结果表明有可能实现信号峰的光谱宽度，该信号峰的光谱受到变换限制，而不是受激光器的频率调制响应限制，这允许使用较窄的检测带宽。窄的宽度导致较低的输出功率具有相对较高的信噪比，因此我们还具有相对较远的范围和较高的范围精度。进行散射测量最大范围，范围精度和目标，以确定测试激光雷达系统的性能。输出功率为10 mW，线宽为400的半导体激光器的最大范围，范围精度和速度精度给出了kHz。讨论了激光器的输出功率和相干长度对基于半导体激光器的FMCW激光雷达性能的影响。 ＃1999美国光学学会OCIS编码：120.0280、280.3400。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号