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[讨论] 大家帮忙讲解一下PVT校准原理吧

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发表于 2007-1-20 06:45:22 | 显示全部楼层 |阅读模式
大家帮忙讲解一下测试校准原理吧
校准PVT的原理
Reference position= +50bit
Relative Position= -4bit
tune PCL 5 to   -48----- -52 chan 124
current H0   =283
                283     -27.65
                276     -35.14
                ...           .....
                266      -48.7
调整方法:增大或者减小H0的值,然后读取制定时间点上的功率,直到该点的功率落在期望的范围之内。
是不是指从USEFUL 上读取第四个BIT位的功率来调整H0?
第四个BIT位的功率可以用平均功率代替么?
 楼主| 发表于 2007-1-20 06:45:22 | 显示全部楼层 |阅读模式
大家帮忙讲解一下测试校准原理吧
校准PVT的原理
Reference position= +50bit
Relative Position= -4bit
tune PCL 5 to   -48----- -52 chan 124
current H0   =283
                283     -27.65
                276     -35.14
                ...           .....
                266      -48.7
调整方法:增大或者减小H0的值,然后读取制定时间点上的功率,直到该点的功率落在期望的范围之内。
是不是指从USEFUL 上读取第四个BIT位的功率来调整H0?
第四个BIT位的功率可以用平均功率代替么?
发表于 2007-1-20 10:54:49 | 显示全部楼层
Philips平台吧
以50bit功率为基准,以-4bit(差不多就是上升沿的中间点)功率为参考,进行调整H0
是-4,不是4
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发表于 2007-1-20 11:05:06 | 显示全部楼层
GSM900
  
The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq = -53,75bits
- Adjust the RAMP1 value until Rel_Mq = -36dBc with the tolerance : –38fBc < Rel_Mq < -34dBc
  
The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq =-52.5bits
- Adjust the RAMP1 value until Rel_Mq = -25dBc with the tolerance : –27dBc < Rel_Mq < -23dBc

DCS1800:

The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq = -53,5bits
- Adjust the RAMP1 value until Rel_Mq = -40dBc with the tolerance : –42dBc < Rel_Mq < -38dBc



The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq =-52.5bits
- Adjust the RAMP1 value until Rel_Mq = -30dBc with the tolerance : –33dBc < Rel_Mq < -27dBc [br]<p align=right><font color=red>+1 RD币</font></p>[br]<p align=right><font color=red>+5 RD币</font></p>
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发表于 2007-1-20 11:06:03 | 显示全部楼层
<DIV class=quote><B>以下是引用<I>cylbailey</I>在2007-1-20 11:05:06的发言:</B>
GSM900
  
The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq = -53,75bits
- Adjust the RAMP1 value until Rel_Mq = -36dBc with the tolerance : –38fBc &lt; Rel_Mq &lt; -34dBc
  
The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq =-52.5bits
- Adjust the RAMP1 value until Rel_Mq = -25dBc with the tolerance : –27dBc &lt; Rel_Mq &lt; -23dBc

DCS1800:

The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq = -53,5bits
- Adjust the RAMP1 value until Rel_Mq = -40dBc with the tolerance : –42dBc &lt; Rel_Mq &lt; -38dBc



The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq =-52.5bits
- Adjust the RAMP1 value until Rel_Mq = -30dBc with the tolerance : –33dBc &lt; Rel_Mq &lt; -27dBc </DIV>


上面是ps的官方建议,实际可以根据自己的情况调整[br]<p align=right><font color=red>+3 RD币</font></p>[br]<p align=right><font color=red>+3 RD币</font></p>
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 楼主| 发表于 2007-1-21 09:00:31 | 显示全部楼层
谢谢
果真是资深R&D工程师啊
佩服!!!
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发表于 2007-1-20 10:54:49 | 显示全部楼层
Philips平台吧
以50bit功率为基准,以-4bit(差不多就是上升沿的中间点)功率为参考,进行调整H0
是-4,不是4
点评回复

使用道具 举报

发表于 2007-1-20 11:05:06 | 显示全部楼层
GSM900
  
The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq = -53,75bits
- Adjust the RAMP1 value until Rel_Mq = -36dBc with the tolerance : –38fBc < Rel_Mq < -34dBc
  
The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq =-52.5bits
- Adjust the RAMP1 value until Rel_Mq = -25dBc with the tolerance : –27dBc < Rel_Mq < -23dBc

DCS1800:

The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq = -53,5bits
- Adjust the RAMP1 value until Rel_Mq = -40dBc with the tolerance : –42dBc < Rel_Mq < -38dBc



The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq =-52.5bits
- Adjust the RAMP1 value until Rel_Mq = -30dBc with the tolerance : –33dBc < Rel_Mq < -27dBc [br]<p align=right><font color=red>+1 RD币</font></p>[br]<p align=right><font color=red>+5 RD币</font></p>
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发表于 2007-1-20 11:06:03 | 显示全部楼层
<DIV class=quote><B>以下是引用<I>cylbailey</I>在2007-1-20 11:05:06的发言:</B>
GSM900
  
The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq = -53,75bits
- Adjust the RAMP1 value until Rel_Mq = -36dBc with the tolerance : –38fBc &lt; Rel_Mq &lt; -34dBc
  
The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq =-52.5bits
- Adjust the RAMP1 value until Rel_Mq = -25dBc with the tolerance : –27dBc &lt; Rel_Mq &lt; -23dBc

DCS1800:

The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq = -53,5bits
- Adjust the RAMP1 value until Rel_Mq = -40dBc with the tolerance : –42dBc &lt; Rel_Mq &lt; -38dBc



The RAMP1 parameter is adjusted with the following target :

- Reference Marker : Ref_Mq = +50bits
- Related marker : Rel_Mq =-52.5bits
- Adjust the RAMP1 value until Rel_Mq = -30dBc with the tolerance : –33dBc &lt; Rel_Mq &lt; -27dBc </DIV>


上面是ps的官方建议,实际可以根据自己的情况调整[br]<p align=right><font color=red>+3 RD币</font></p>[br]<p align=right><font color=red>+3 RD币</font></p>
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 楼主| 发表于 2007-1-21 09:00:31 | 显示全部楼层
谢谢
果真是资深R&D工程师啊
佩服!!!
点评回复

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