摘要
针对不同的伪码波形对码跟踪环的性能影响存在差异，推导了卫星导航信号脉冲波形的性能评估准则。准则从两方面考虑，一是码跟踪误差，一是抗多径性能。仿真分析了几种典型波形的信号，得出在相同条件下，线性偏移副载波信号（LOC）具有最小的码跟踪误差下限，二进制偏移副载波信号（BOC）具有最小的多径误差包络下限。具有较优码跟踪误差下限的信号不一定具有较好的抗多径能力，所以针对不同的应用要考虑两者的均衡。
Different signal waveforms present dissimilar effect on code tracking loop. The evaluation criterion of signal waveform, which is composed of two parts of code tracking error lower band and anti-multipath performance, was derived. By the way of simulation, it was concluded that the LOC signal has the smallest code tracking error lower band, while the BOC signal has the smallest multipath error envelope lower band in the same assumption. The signal which has better code tracking error may not have good anti-multipath, so the balance between them should be considered for different application.
出处
《弹箭与制导学报》
CSCD
北大核心
2010年第4期61-64,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
武器装备预研基金
国家863计划(2008AA12Z302)资助
关键词
GNSS
信号波形
修正卡拉美罗界
码跟踪误差
抗多径
BOC
global navigation satellite system
signal waveform
MCRB
code tracking error
anti-multipath
BOG
