1) regenerative pseudo-noise ranging
再生伪码测距
1.
Considering different power divisions of the ranging channel and the data channel in regenerative pseudo-noise ranging applications,the impact of the data channel with two modulation modes of PCM/PSK/PM and SP-L/PM on the tracking accuracy of pseudo-code tracking loop was investigated,and the effect of frequency reference instability was also discussed.
针对再生伪码测距应用中测距通道和数据(遥控或遥测)通道同时工作时的不同功率分配情况,分析了数据通道在PCM/PSK/PM和SP-L/PM两种调制方式下对伪码跟踪环跟踪精度的影响,同时还考虑了频率参考源不稳定引入的影响。
2) pseudo code ranging
伪码测距
1.
A nonlinear estimation algorithm for pseudo code ranging in frequency domain was presented in this paper against the difficulties of high work clock needed in the traditional pulse-counting-based method and the deleterious effect of the code circus s jitter on the measure accuracy.
针对伪码测距领域常用的脉冲计数法所需系统工作时钟过高,以及码环抖动对测量精度影响较大的问题,提出了一种可以准确的测量出接收伪码同步误差的频域非线性估计算法。
3) PN code ranging
伪码测距
1.
In a distributed satellite station system the high precision PN code ranging is realized.
提出了一种基于内插滤波器的全数字非相干二元鉴相延迟锁相环(Delay Iocked loop,DLL),在分布式卫星地球站系统中实现各地球站与卫星的高精确伪码测距。
2.
In high precision PN code ranging systems,HPA is an important component.
在高精度伪码测距系统中,高功率放大器(HPA)是信号发射链路的重要组成部分,HPA会对发射信号引入非线性失真,进而恶化系统的伪码测距性能。
4) Regenerative Ranging
再生测距
5) pseudo random noise ranging
伪码扩频测距
6) pseudo random code in measuring
伪随机码测距
1.
And the problem of the GPS receiver spseudo random code in measuring is fully conside red while designing,in a word,this system shows many advantages,such as simplicity,easy controlling modul good privacy and soo.
在设计时充分考虑了GPS接收机伪随机码测距的问题。
补充资料:HP-241B色带打码机/HP-30手动打码机
适用材料:
塑料薄膜PT、PE、PVC、OPP、KT、铝箔、饮料瓶商标;各种塑料复合材料、塑料袋、纸(不干胶、卡片)、皮革、布;包装容器袋、塑料制品;电子元件外壳。
工作原理及结构特点:
采用热打印带代替油墨打印,采取特殊的活字装卸换字结构,可在任何软包装材料上打印。印字清晰,不易擦掉;卫生干净,无油墨污染之优,是一种经济卫生的打印方式。
HP-241技术参数:
最高速度:70-120次/分 可调
打印间距:任意
打印行数:1-3行
电 压:220V±10% 50Hz
功 率:200W
热打印带宽度:25-35mm
HP-30技术参数:
电 源:220V/50Hz
功 率:≤40W
尺 寸:225×200×155mm
重 量:2.5kg
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条