大地测量与地球动力学2012，Vol.32Issue(2)：24-27,4.
LCRⅡ型和Ⅰ型航空重力仪的同机飞行试验
CONCURRENT FLIGHT TEST OF LaCoste & Romberg(LCR) AIRBORNE GRAVIMETER Ⅱ AND Ⅰ SYSTEM
摘要
Abstract
In order to validate the accuracy and the performance of the LaCoste & Romberg (LCRⅡ ) , a con-current flight test over a mountain area was undertaken. The LCR gravimeter E and an LCR gravimeter I system side by side. The results of the flight test show that the standard deviation of the gravity anomalies difference measured with the two systems is about 4.0×10-5 ms-2 namely the accuracy of the single system is about 2. 8 x 10-5 ms-2 if we assumed the two systems have the same accuracy. They also indicate that the standard deviation of the 5' × 5' grid mean gravity anomalies difference from the two systems is about 4.9 xl0-5ms-2 namely the related accu-racy of the single system is about 3.5 x 10-5ms-2 and 2.9 × 10-5ms-2 after two outliers were eliminated. In gener-al, LCR gravimeter Ⅱ system has the identical accuracy as the LCR gravimeter I system, but it can be quickly leveling off.关键词
航空重力测量/航空重力仪/重力异常/低通滤波器/同机飞行Key words
airborne gravimetry/ airborne gravimeter/ gravity anomaly/ lowpass filter/concurrent flight分类
天文与地球科学引用本文复制引用
孙中苗,翟振和,李迎春,肖云..LCRⅡ型和Ⅰ型航空重力仪的同机飞行试验[J].大地测量与地球动力学,2012,32(2):24-27,4.基金项目
国家自然科学基金(41174017) （41174017）
