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关注：1 2013-05-23 12:21

求翻译：Symbol positions are noted with (t, f) indices, where the time index t takes the values between 1 and NOFDM , with NOFDM being the total number of OFDM symbols within one frame. The frequency index f takes values between -32 and 31 with f = 0 representing the DC sub- carrier. The numbering starts with the guard symbol in the upper left corner with the symbol position (1,-32) as illustrated in Figure 4-6.是什么意思？

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Symbol positions are noted with (t, f) indices, where the time index t takes the values between 1 and NOFDM , with NOFDM being the total number of OFDM symbols within one frame. The frequency index f takes values between -32 and 31 with f = 0 representing the DC sub- carrier. The numbering starts with the guard symbol in the upper left corner with the symbol position (1,-32) as illustrated in Figure 4-6.
问题补充：
  • 匿名
2013-05-23 12:26:38
注意到符号的位置 （t、 f） 指数，在时间索引 t 带 1 和 NOFDM，与 NOFDM 的 OFDM 符号内一帧的总数之间的值。频率索引 f 采用 31 f-32 之间的值 = 0 表示直流子承运人。编号开头警卫符号在左上角的符号位置 （1-32） 图 4-6 所示。
 
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