本研究针对多能谱CT(multi-energy CT)中数据复杂性与定量精度难以平衡的临床挑战，提出了一种基于Cramer-Rao下界(CRLB)优化的双通道加权方案。通过将四通道（双层探测器结合kVp切换技术）数据降维处理，研究人员在保证碘/水分解 ...

针对地面分布式多基地雷达系统对高空目标定位精度不足的问题，研究人员创新性地将空间角 (SA)测量与双基地距离 (BR)结合，提出WLS-ER闭式解算法。该研究通过加权最小二乘 (WLS)粗估计与代数误差缩减 (ER)两步优化，显著提升高度方向定位精度，理论证明其渐近达到克拉美罗下界 (CRLB)，为雷达系统 ...

Importantly, the CRLB will waive late fees for renewals until June 1, 2020 and has extended the time frame to become licensed (applicable to home inspectors, commercial roofers, well drillers/pump ...

An emergency rule of Rhode Island CRLB went into effect this morning “in response to the State of Emergency issued by the Governor.” The rule seeks “limit in-person contact while continuing ...