Automatic calibration of loran envelope to cycle discrepancy
专利汇可以提供Automatic calibration of loran envelope to cycle discrepancy专利检索，专利查询，专利分析的服务。并且This invention relates to a method of reducing the envelope-tocycle discrepancy (ECD) in a digital sample data system such as is used in radio navigation systems; i.e., Loran. Incoming pulsed carrier signals are amplitude sampled to determine the time position on the rising edge of the pulse envelope. In this way, the correct carrier phase is selected to eliminate ambiguities between lanes that occur every carrier cycle. The instantaneous envelope-to-cycle discrepancy of the received signal is measured with respect to an internally stored shape factor K, and averaged to reduce noise for a length of time determined by the signal-tonoise ratio or for a fixed length of time determined by worst case conditions. A cycle jump test is performed to determine whether the average error is due to a timing error or is truly an envelope-to-cycle discrepancy bias error, the threshold being + OR - 5 microseconds which is one-half of a carrier cycle. The ECD is then driven to a null by updating an integrator which holds the accumulated ECD and which is fed back and subtracted from the envelope-to-cycle discrepancy measured on the incoming signal.，下面是Automatic calibration of loran envelope to cycle discrepancy专利的具体信息内容。
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 一种基于车载经纬仪的自定位系统及方法 | 2020-05-08 | 260 |
| 一种旅客列车运行方案图编制方法 | 2020-05-11 | 938 |
| 一种用于三级式无刷同步电机的多环调压控制方法 | 2020-05-11 | 227 |
| 自由界面附近层析粒子图像测速方法 | 2020-05-11 | 237 |
| 基于spark streaming的实时规则的布控预警方法及装置 | 2020-05-08 | 828 |
| 获取配置检查清单的方法、装置、电子设备及存储介质 | 2020-05-08 | 655 |
| 基于机器学习的高校前沿科研团队探测系统 | 2020-05-08 | 746 |
| 基于稀疏异方差多样条回归的风功率曲线拟合的方法 | 2020-05-11 | 622 |
| 一种基于多值体元的机载多光谱LIDAR三维分割方法 | 2020-05-11 | 549 |
| 聚类访客统计方法、系统、设备及计算机可读存储介质 | 2020-05-11 | 332 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。
