由Norhrop-GrummanLitef公司生产的IMU-ISA-100C是一款性能接近导航级别的惯性测量单元，集成了三轴光纤陀螺仪和全温补偿MEMS加速度计。IMU-ISA-100C通过一个高可靠性的IMU接口与NovAtel公司的ProPak7接收机进行数据交互，ProPak7接收机将GNSS和IMU的测量数据进行融合后，以200Hz的频率输出高精度的三维位置、速度、姿态信息。特点紧耦合技术FOG闭环光纤陀螺ZUPT零速修正近导航级精度性能指标水平定位精度(RMS)单点L1/L21.2mSBAS0.6mDGPS0.4mRTK1cm+1ppm初始化时间<10s初始化可靠性>99.9%速度精度（RMS）0.03m/s时间精度（RMS）20nsIMU性能陀螺输入范围±495°/s陀螺零偏0.5°/h陀螺偏速比例因子100ppm角随机游走0.012°/√h加速度计量程±10g加速度计线性度/比例因子100ppm加速度计偏差1250ug数据更新率IMU测量200HZINS位置200HZINS速度200HZINS姿态200HZ速度限制515m/s高度限制无IMU电气指标体积180mm×150mm×137mm重量5.0Kg功耗18W输入电压+10V～+34V环境适用性工作温度-40℃～+55℃存储温度-40℃～+85℃湿度95%无冷凝MTBF大于46100h系统性能指标：（锁定状态和卫星失锁状态）失锁时间定位模式位置误差m（RMS）速度误差m/s（RMS）姿态误差°（RMS）水平垂直水平垂直横滚俯仰航向0sRTK0.020.050.0100.0100.0070.0070.010PPP0.060.150.0100.0100.0070.0070.010SP1.200.600.0100.0100.0070.0070.010PP0.010.020.0100.0100.0030.0030.00410sRTK0.070.100.0150.0150.0080.0080.012PPP0.110.200.0150.0150.0080.0080.012SP1.250.650.0150.0150.0080.0080.012PP0.010.020.0100.0100.0030.0030.00460sRTK0.720.450.0350.0250.0090.0090.015PPP0.760.550.0350.0250.0090.0090.015SP1.901.000.0350.0250.0090.0090.015PP0.040.020.0300.0100.0030.0030.004