UC知道英文资料翻译 毕业用 谢谢
来源：百度知道 编辑：UC知道 时间：2024/06/30 18:17:25
System requirements
The starting point for an electronic system design is the
specification. Assume that the goal is to process the following
code-division multiple-access (CDMA) baseband IF signal:
• 100-dB blocker at 250-kHz at the edge of the pass band
• 4 to 5 bits of resolution in the baseband—translates to
an 80-dB spurious-free dynamic range (SFDR)
• An IF signal of 18 MHz (second harmonic from IF at
36 MHz)
• 6- to 12-dB attenuation of second harmonic from op amp
• The digital downconverter has a process gain of 22.4 dB
• The in-band thermal noise power at 25°C is approximately
–98.4 dBm
• The sampling rate is 65 MHz
• A radio noise figure of 2 to 4 dB
• An antenna noise bandwidth of 35 MHz
• Eb/No = 5 dB
The starting point for an electronic system design is the
specification. Assume that the goal is to process the following
code-division multiple-access (CDMA) baseband IF signal:
• 100-dB blocker at 250-kHz at the edge of the pass band
• 4 to 5 bits of resolution in the baseband—translates to
an 80-dB spurious-free dynamic range (SFDR)
• An IF signal of 18 MHz (second harmonic from IF at
36 MHz)
• 6- to 12-dB attenuation of second harmonic from op amp
• The digital downconverter has a process gain of 22.4 dB
• The in-band thermal noise power at 25°C is approximately
–98.4 dBm
• The sampling rate is 65 MHz
• A radio noise figure of 2 to 4 dB
• An antenna noise bandwidth of 35 MHz
• Eb/No = 5 dB
太多了，我只好用机器翻译，你可以修改一下使用。
系统要求起点为电子系统的设计规格. 假定目标是过程以下分码多重存取( CDMA )技术,如果基带信号: •100分贝阻滞剂在250千赫在边缘的通频带•4至5比特决议次 电子基-换算为80分贝伪自由动态范围( SFDR指标)•如果一个信号, 18兆赫(第二次谐波,如果在 36兆赫)•6至12分贝衰减二次谐波从作品安培•数字下变频器具有炙 SS的增益22.4分贝•在波段热噪声功率, 25 ° C时约为-98.4 dbm•采样率 65•兆赫无线电噪声2-4分贝•天线噪声带宽35荣誉 Z•第束/无= 5分贝