Calculate FIR rolloff filter coeficients

---

rolloff rate 0.25 0.33 0.50 0.66 0.75 1.00 distribution rate 0.25 0.33 0.50 0.66 1.00
over samplings 2nd 4th 8th 16th 32th number of taps 7 15 31 63 127 257
output format integer double scaling factor

Source code : calcroll-2.7.2.tar.gz (5.7KB), MD5 (calcroll-2.7.2.tar.gz) = 189ea9583391ac81c1556e4d745ed511

---

[fig.1 FIR Coefficients example of a roll filter]	[fig.2 Frequency response examples of the Niquist filters]
[fig.3 Example of the 16QAM base-bnad signal]	[fig.4 The consteration example of the Π / 4 shift QPSK]

⚠️ Java アプリケーションの実行には JAVA のインストール と 例外サイトへの追加 が必要です。

---

© 2000 Takayuki HOSODA.