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+ǰŵ

Դغӽ׿Ƽ޹˾ ڣ2018-05-07 73

1.ǣESE빤

     Խ
      1ͬ߶ȣ£“Satelit+”ͨ뱣Χ
      2׸׼ȷС׻ڷDZĸʡ
     ȫɿ޷Ԫأֲϣ͸ʴǿ
     άԴ蹩磬޺Ԫ
     װ򵥣ᣬװͬε¡
    

2.ǣESEƷͺ

     TݷNFC17-102涨ʱ䣬ʵʲֵڹ涨ֵ

 3.ǣESE뱣뾶

NFC17-102涨Ӧڱˮƽ2m(h1)ϡ߶Ȳͬʱ(h2,h3,…hn)

䱣Χ뾶ֱΪRp2,Rp3…Rpn㹫ʽӦDZķ׵ȼصױ͵ʵò

“satelit+”ı뾶߶(h)йأʱ䣨ͺţйأԼѡıйأ

h≥5ʱ ;

עʽ,RpΪǵˮƽϵı뾶hΪڱﶥˮƽ߶ȲDΪ뾶룩

һཨΪ20m(GB50057-94涨D=30m)

ڶཨΪ45m

ཨΪ60m

 LΪ“satelit+”Ⱦ

L=V/΢룩·T΢룩

VΪȵٶȣʵݱV=1/΢

h<5ʱ뾶

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