寻Matlab中firrcos(n,F0,r,fs'type',delay)函数中F0与delay的详细中文定义，
发布网友
发布时间：2022-04-29 18:08
共1个回答
热心网友
时间：2023-10-28 17:43
B=FIRRCOS(N,Fc,DF,Fs) returns an order N low pass linear phase FIR
filter with a raised cosine transition band. The filter has cutoff
frequency Fc, sampling frequency Fs and transition bandwidth DF (all in
Hz). The order of the filter, N, must be even.
Fc +/- DF/2 must be in the range [0,Fs/2].
The coefficients of B are normalized so that the nominal passband gain
is always equal to one.
FIRRCOS(N,Fc,DF) uses a default sampling frequency of Fs = 2.
B=FIRRCOS(N,Fc,R,Fs,'rolloff') interprets the third argument as the
rolloff factor instead of as a transition bandwidth. Alternatively, you
can specify B=FIRRCOS(N,Fc,DF,Fs,'bandwidth') which is equivalent to
B=FIRRCOS(N,Fc,DF,Fs).
R must be in the range [0,1].
B=FIRRCOS(N,Fc,DF,Fs,DESIGNTYPE) or
B=FIRRCOS(N,Fc,R,Fs,'rolloff',DESIGNTYPE)
will design a regular FIR raised cosine filter when DESIGNTYPE is
'normal' or set to an empty matrix. If DESIGNTYPE is 'sqrt', B is the
square root FIR raised cosine filter.
B=FIRRCOS(...,DESIGNTYPE,DELAY) allows for a variable integer delay to
be specified. When omitted or left empty, DELAY defaults to N/2.
DELAY must be an integer in the range [0, N+1].
B=FIRRCOS(...,DELAY,WINDOW) applies a length N+1 window to the designed
filter in order to rece the ripple in the frequency response. WINDOW
must be a N+1 long column vector. If no window is specified a boxcar
(rectangular) window is used.
WARNING: Care must be exercised when using a window with a delay other
than the default.
[B,A]=FIRRCOS(...) will always return A = 1.
See also firls, fir1, fir2. Reference page in Help browser
doc firrcos ================================================================================= 你式中的“F0”其实是上面help中的“Fc”，也就是frequency频率，相应设置它的值即可。其中你都明白的香农定理为：0<Fc<Fs/2的从“DELAY must be an integer in the range [0, N+1].”可以看出delay是一个范围内的整数，当然不能输入0就算了。其格式是[0，N+1]，如果缺省就是默认的N/2 还有你所列的例子，恕我不能完成了，因为我还不是很懂。我只能帮你看看这个函数的help情况了，你看是否对你有帮助？
热心网友
时间：2023-10-28 17:43
B=FIRRCOS(N,Fc,DF,Fs) returns an order N low pass linear phase FIR
filter with a raised cosine transition band. The filter has cutoff
frequency Fc, sampling frequency Fs and transition bandwidth DF (all in
Hz). The order of the filter, N, must be even.
Fc +/- DF/2 must be in the range [0,Fs/2].
The coefficients of B are normalized so that the nominal passband gain
is always equal to one.
FIRRCOS(N,Fc,DF) uses a default sampling frequency of Fs = 2.
B=FIRRCOS(N,Fc,R,Fs,'rolloff') interprets the third argument as the
rolloff factor instead of as a transition bandwidth. Alternatively, you
can specify B=FIRRCOS(N,Fc,DF,Fs,'bandwidth') which is equivalent to
B=FIRRCOS(N,Fc,DF,Fs).
R must be in the range [0,1].
B=FIRRCOS(N,Fc,DF,Fs,DESIGNTYPE) or
B=FIRRCOS(N,Fc,R,Fs,'rolloff',DESIGNTYPE)
will design a regular FIR raised cosine filter when DESIGNTYPE is
'normal' or set to an empty matrix. If DESIGNTYPE is 'sqrt', B is the
square root FIR raised cosine filter.
B=FIRRCOS(...,DESIGNTYPE,DELAY) allows for a variable integer delay to
be specified. When omitted or left empty, DELAY defaults to N/2.
DELAY must be an integer in the range [0, N+1].
B=FIRRCOS(...,DELAY,WINDOW) applies a length N+1 window to the designed
filter in order to rece the ripple in the frequency response. WINDOW
must be a N+1 long column vector. If no window is specified a boxcar
(rectangular) window is used.
WARNING: Care must be exercised when using a window with a delay other
than the default.
[B,A]=FIRRCOS(...) will always return A = 1.
See also firls, fir1, fir2. Reference page in Help browser
doc firrcos ================================================================================= 你式中的“F0”其实是上面help中的“Fc”，也就是frequency频率，相应设置它的值即可。其中你都明白的香农定理为：0<Fc<Fs/2的从“DELAY must be an integer in the range [0, N+1].”可以看出delay是一个范围内的整数，当然不能输入0就算了。其格式是[0，N+1]，如果缺省就是默认的N/2 还有你所列的例子，恕我不能完成了，因为我还不是很懂。我只能帮你看看这个函数的help情况了，你看是否对你有帮助？
热心网友
时间：2023-10-28 17:43
B=FIRRCOS(N,Fc,DF,Fs) returns an order N low pass linear phase FIR
filter with a raised cosine transition band. The filter has cutoff
frequency Fc, sampling frequency Fs and transition bandwidth DF (all in
Hz). The order of the filter, N, must be even.
Fc +/- DF/2 must be in the range [0,Fs/2].
The coefficients of B are normalized so that the nominal passband gain
is always equal to one.
FIRRCOS(N,Fc,DF) uses a default sampling frequency of Fs = 2.
B=FIRRCOS(N,Fc,R,Fs,'rolloff') interprets the third argument as the
rolloff factor instead of as a transition bandwidth. Alternatively, you
can specify B=FIRRCOS(N,Fc,DF,Fs,'bandwidth') which is equivalent to
B=FIRRCOS(N,Fc,DF,Fs).
R must be in the range [0,1].
B=FIRRCOS(N,Fc,DF,Fs,DESIGNTYPE) or
B=FIRRCOS(N,Fc,R,Fs,'rolloff',DESIGNTYPE)
will design a regular FIR raised cosine filter when DESIGNTYPE is
'normal' or set to an empty matrix. If DESIGNTYPE is 'sqrt', B is the
square root FIR raised cosine filter.
B=FIRRCOS(...,DESIGNTYPE,DELAY) allows for a variable integer delay to
be specified. When omitted or left empty, DELAY defaults to N/2.
DELAY must be an integer in the range [0, N+1].
B=FIRRCOS(...,DELAY,WINDOW) applies a length N+1 window to the designed
filter in order to rece the ripple in the frequency response. WINDOW
must be a N+1 long column vector. If no window is specified a boxcar
(rectangular) window is used.
WARNING: Care must be exercised when using a window with a delay other
than the default.
[B,A]=FIRRCOS(...) will always return A = 1.
See also firls, fir1, fir2. Reference page in Help browser
doc firrcos ================================================================================= 你式中的“F0”其实是上面help中的“Fc”，也就是frequency频率，相应设置它的值即可。其中你都明白的香农定理为：0<Fc<Fs/2的从“DELAY must be an integer in the range [0, N+1].”可以看出delay是一个范围内的整数，当然不能输入0就算了。其格式是[0，N+1]，如果缺省就是默认的N/2 还有你所列的例子，恕我不能完成了，因为我还不是很懂。我只能帮你看看这个函数的help情况了，你看是否对你有帮助？
热心网友
时间：2023-10-28 17:43
B=FIRRCOS(N,Fc,DF,Fs) returns an order N low pass linear phase FIR
filter with a raised cosine transition band. The filter has cutoff
frequency Fc, sampling frequency Fs and transition bandwidth DF (all in
Hz). The order of the filter, N, must be even.
Fc +/- DF/2 must be in the range [0,Fs/2].
The coefficients of B are normalized so that the nominal passband gain
is always equal to one.
FIRRCOS(N,Fc,DF) uses a default sampling frequency of Fs = 2.
B=FIRRCOS(N,Fc,R,Fs,'rolloff') interprets the third argument as the
rolloff factor instead of as a transition bandwidth. Alternatively, you
can specify B=FIRRCOS(N,Fc,DF,Fs,'bandwidth') which is equivalent to
B=FIRRCOS(N,Fc,DF,Fs).
R must be in the range [0,1].
B=FIRRCOS(N,Fc,DF,Fs,DESIGNTYPE) or
B=FIRRCOS(N,Fc,R,Fs,'rolloff',DESIGNTYPE)
will design a regular FIR raised cosine filter when DESIGNTYPE is
'normal' or set to an empty matrix. If DESIGNTYPE is 'sqrt', B is the
square root FIR raised cosine filter.
B=FIRRCOS(...,DESIGNTYPE,DELAY) allows for a variable integer delay to
be specified. When omitted or left empty, DELAY defaults to N/2.
DELAY must be an integer in the range [0, N+1].
B=FIRRCOS(...,DELAY,WINDOW) applies a length N+1 window to the designed
filter in order to rece the ripple in the frequency response. WINDOW
must be a N+1 long column vector. If no window is specified a boxcar
(rectangular) window is used.
WARNING: Care must be exercised when using a window with a delay other
than the default.
[B,A]=FIRRCOS(...) will always return A = 1.
See also firls, fir1, fir2. Reference page in Help browser
doc firrcos ================================================================================= 你式中的“F0”其实是上面help中的“Fc”，也就是frequency频率，相应设置它的值即可。其中你都明白的香农定理为：0<Fc<Fs/2的从“DELAY must be an integer in the range [0, N+1].”可以看出delay是一个范围内的整数，当然不能输入0就算了。其格式是[0，N+1]，如果缺省就是默认的N/2 还有你所列的例子，恕我不能完成了，因为我还不是很懂。我只能帮你看看这个函数的help情况了，你看是否对你有帮助？
热心网友
时间：2023-10-28 17:43
B=FIRRCOS(N,Fc,DF,Fs) returns an order N low pass linear phase FIR
filter with a raised cosine transition band. The filter has cutoff
frequency Fc, sampling frequency Fs and transition bandwidth DF (all in
Hz). The order of the filter, N, must be even.
Fc +/- DF/2 must be in the range [0,Fs/2].
The coefficients of B are normalized so that the nominal passband gain
is always equal to one.
FIRRCOS(N,Fc,DF) uses a default sampling frequency of Fs = 2.
B=FIRRCOS(N,Fc,R,Fs,'rolloff') interprets the third argument as the
rolloff factor instead of as a transition bandwidth. Alternatively, you
can specify B=FIRRCOS(N,Fc,DF,Fs,'bandwidth') which is equivalent to
B=FIRRCOS(N,Fc,DF,Fs).
R must be in the range [0,1].
B=FIRRCOS(N,Fc,DF,Fs,DESIGNTYPE) or
B=FIRRCOS(N,Fc,R,Fs,'rolloff',DESIGNTYPE)
will design a regular FIR raised cosine filter when DESIGNTYPE is
'normal' or set to an empty matrix. If DESIGNTYPE is 'sqrt', B is the
square root FIR raised cosine filter.
B=FIRRCOS(...,DESIGNTYPE,DELAY) allows for a variable integer delay to
be specified. When omitted or left empty, DELAY defaults to N/2.
DELAY must be an integer in the range [0, N+1].
B=FIRRCOS(...,DELAY,WINDOW) applies a length N+1 window to the designed
filter in order to rece the ripple in the frequency response. WINDOW
must be a N+1 long column vector. If no window is specified a boxcar
(rectangular) window is used.
WARNING: Care must be exercised when using a window with a delay other
than the default.
[B,A]=FIRRCOS(...) will always return A = 1.
See also firls, fir1, fir2. Reference page in Help browser
doc firrcos ================================================================================= 你式中的“F0”其实是上面help中的“Fc”，也就是frequency频率，相应设置它的值即可。其中你都明白的香农定理为：0<Fc<Fs/2的从“DELAY must be an integer in the range [0, N+1].”可以看出delay是一个范围内的整数，当然不能输入0就算了。其格式是[0，N+1]，如果缺省就是默认的N/2 还有你所列的例子，恕我不能完成了，因为我还不是很懂。我只能帮你看看这个函数的help情况了，你看是否对你有帮助？
热心网友
时间：2023-10-28 17:43
B=FIRRCOS(N,Fc,DF,Fs) returns an order N low pass linear phase FIR
filter with a raised cosine transition band. The filter has cutoff
frequency Fc, sampling frequency Fs and transition bandwidth DF (all in
Hz). The order of the filter, N, must be even.
Fc +/- DF/2 must be in the range [0,Fs/2].
The coefficients of B are normalized so that the nominal passband gain
is always equal to one.
FIRRCOS(N,Fc,DF) uses a default sampling frequency of Fs = 2.
B=FIRRCOS(N,Fc,R,Fs,'rolloff') interprets the third argument as the
rolloff factor instead of as a transition bandwidth. Alternatively, you
can specify B=FIRRCOS(N,Fc,DF,Fs,'bandwidth') which is equivalent to
B=FIRRCOS(N,Fc,DF,Fs).
R must be in the range [0,1].
B=FIRRCOS(N,Fc,DF,Fs,DESIGNTYPE) or
B=FIRRCOS(N,Fc,R,Fs,'rolloff',DESIGNTYPE)
will design a regular FIR raised cosine filter when DESIGNTYPE is
'normal' or set to an empty matrix. If DESIGNTYPE is 'sqrt', B is the
square root FIR raised cosine filter.
B=FIRRCOS(...,DESIGNTYPE,DELAY) allows for a variable integer delay to
be specified. When omitted or left empty, DELAY defaults to N/2.
DELAY must be an integer in the range [0, N+1].
B=FIRRCOS(...,DELAY,WINDOW) applies a length N+1 window to the designed
filter in order to rece the ripple in the frequency response. WINDOW
must be a N+1 long column vector. If no window is specified a boxcar
(rectangular) window is used.
WARNING: Care must be exercised when using a window with a delay other
than the default.
[B,A]=FIRRCOS(...) will always return A = 1.
See also firls, fir1, fir2. Reference page in Help browser
doc firrcos ================================================================================= 你式中的“F0”其实是上面help中的“Fc”，也就是frequency频率，相应设置它的值即可。其中你都明白的香农定理为：0<Fc<Fs/2的从“DELAY must be an integer in the range [0, N+1].”可以看出delay是一个范围内的整数，当然不能输入0就算了。其格式是[0，N+1]，如果缺省就是默认的N/2 还有你所列的例子，恕我不能完成了，因为我还不是很懂。我只能帮你看看这个函数的help情况了，你看是否对你有帮助？
热心网友
时间：2023-11-19 18:41
B=FIRRCOS(N,Fc,DF,Fs) returns an order N low pass linear phase FIR
filter with a raised cosine transition band. The filter has cutoff
frequency Fc, sampling frequency Fs and transition bandwidth DF (all in
Hz). The order of the filter, N, must be even.
Fc +/- DF/2 must be in the range [0,Fs/2].
The coefficients of B are normalized so that the nominal passband gain
is always equal to one.
FIRRCOS(N,Fc,DF) uses a default sampling frequency of Fs = 2.
B=FIRRCOS(N,Fc,R,Fs,'rolloff') interprets the third argument as the
rolloff factor instead of as a transition bandwidth. Alternatively, you
can specify B=FIRRCOS(N,Fc,DF,Fs,'bandwidth') which is equivalent to
B=FIRRCOS(N,Fc,DF,Fs).
R must be in the range [0,1].
B=FIRRCOS(N,Fc,DF,Fs,DESIGNTYPE) or
B=FIRRCOS(N,Fc,R,Fs,'rolloff',DESIGNTYPE)
will design a regular FIR raised cosine filter when DESIGNTYPE is
'normal' or set to an empty matrix. If DESIGNTYPE is 'sqrt', B is the
square root FIR raised cosine filter.
B=FIRRCOS(...,DESIGNTYPE,DELAY) allows for a variable integer delay to
be specified. When omitted or left empty, DELAY defaults to N/2.
DELAY must be an integer in the range [0, N+1].
B=FIRRCOS(...,DELAY,WINDOW) applies a length N+1 window to the designed
filter in order to rece the ripple in the frequency response. WINDOW
must be a N+1 long column vector. If no window is specified a boxcar
(rectangular) window is used.
WARNING: Care must be exercised when using a window with a delay other
than the default.
[B,A]=FIRRCOS(...) will always return A = 1.
See also firls, fir1, fir2. Reference page in Help browser
doc firrcos ================================================================================= 你式中的“F0”其实是上面help中的“Fc”，也就是frequency频率，相应设置它的值即可。其中你都明白的香农定理为：0<Fc<Fs/2的从“DELAY must be an integer in the range [0, N+1].”可以看出delay是一个范围内的整数，当然不能输入0就算了。其格式是[0，N+1]，如果缺省就是默认的N/2 还有你所列的例子，恕我不能完成了，因为我还不是很懂。我只能帮你看看这个函数的help情况了，你看是否对你有帮助？
