参数资料
型号: IP-FIR
厂商: Altera
文件页数: 28/76页
文件大小: 0K
描述: IP FIR COMPILER
标准包装: 1
系列: *
类型: MegaCore
功能: 有限脉冲响应编译器
许可证: 初始许可证
3–4
Chapter 3: Parameter Settings
Specifying the Coefficients
3. After making your settings, click Apply . The dialog box displays the frequency
response of the filter in blue and also displays a list of the actual coefficient values.
Figure 3–3. Parallel FIR Filter Coefficient Parameters for Band Pass Filter
4. To generate floating-point coefficients for interpolation or decimation rate filters,
select Interpolation or Decimation and the required Factor from the Rate
Specification drop-down boxes.
When you click Auto Generate , IP Toolbench generates coefficients for a low-pass
filter with a cutoff frequency based on the specified rate.
Figure 3–4 on page 3–5 shows a decimation filter. The cut-off frequency is ? of the
sampling rate and results in a half-band coefficient set.
For an explanation of interpolation and decimation, refer to “Interpolation and
? May 2011 Altera Corporation
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