| 摘要: |
| 本文对3G的WCDMA中的ACS参数进行分析,解释33 dB的理由。并对实际电路的RF接收的ACS指标进行测试,设置测试的中心频率是2 110 MHz、2 140 MHz和2 170 MHz 3个高中低频率点,测得在偏离中心频率点 /-5 MHz的调制干扰信号值为-48 dBm到-42 dBm之间(BER=0.001时),可得幅度裕量在3.9 dB到9.2 dB之间,满足3GPP中的干扰信号-52 dBm电平要求。 |
| 关键词: 宽带码分多址 接收机 邻道干扰 测试 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:April 18, 2005 |
| 基金项目: |
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| Study on ACS Effect of WCDMA Receivers |
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| Abstract: |
| ACS specifications in a WCDMA system are analysed,and why ACS is 33 dB is explained.When the frequencies are 2 110 MHz,2 140 MHz and 2 170 MHz,the ACS specifications of a circuit are tested.The result is-48 dBm to-42 dBm(at BER=0.001) offset /-5 MHz from centre frequency,and it satisfies the 3GPP Specification52 dBm. |
| Key words: ACS |
