Method and device for the aggregation of signals from sampling values
First Claim
1. A method of forming an aggregation of N>
- 1 band-limited time signals, each with a bandwidth ≦
B, which are present as analog and/or digital sampling values, where the respective sampling frequency is fA>
2B, comprising the steps of;
1) offsetting in time and superimposing on each other the sampling values of all N time signals;
2) jointly routing the superimposed sampling values to a low-pass filter (12;
22;
32;
42;
52;
62;
72) with a bandwidth of B′
>
B;
3) tapping off a composite signal from the output of the low-pass filter (12;
22;
32;
42;
52;
62;
72).
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Accused Products
Abstract
A method of forming an aggregation of N>1 band-limited time signals, each with a bandwidth of ≦B, which are present as analog and/or digital sampling values, with a respective sampling frequency of fA>2B, is characterized in that the sampling values of all N time signals are offset in time and superimposed on each other, and are jointly input to a low-pass filter (12) with a bandwidth of B′>B, and that a composite signal is tapped off from the output of the low-pass filter (12). This allows the aggregation to be performed in a considerably shorter calculation time, a number of slow and expensive aggregation elements can possibly be saved, and the damping of the signals during processing can be minimized, as well as the corresponding loss of information.
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Citations
16 Claims
-
1. A method of forming an aggregation of N>
- 1 band-limited time signals, each with a bandwidth ≦
B, which are present as analog and/or digital sampling values, where the respective sampling frequency is fA>
2B, comprising the steps of;1) offsetting in time and superimposing on each other the sampling values of all N time signals;
2) jointly routing the superimposed sampling values to a low-pass filter (12;
22;
32;
42;
52;
62;
72) with a bandwidth of B′
>
B;
3) tapping off a composite signal from the output of the low-pass filter (12;
22;
32;
42;
52;
62;
72).- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 15)
- 1 band-limited time signals, each with a bandwidth ≦
-
9. A method as claimed in 8, wherein the superimposing of sampling values and the lower sampling frequency of the composite signal are performed with a digital signal processor.
-
11. A method as claimed in 3, wherein the superimposing of sampling values and the lower sampling frequency of the composite signal are performed with a digital signal processor.
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14. A method as claimed in 12, wherein the superimposing of sampling values and the lower sampling frequency of the composite signal are performed with a digital signal processor.
-
16. A device for forming an aggregation of N>
- 1 band-limited time signals, each with a bandwidth ≦
B, which are present as analog and/or digital sampling values, where the respective sampling frequency is fA>
2B, comprising;A) a time-division multiplex unit (11;
21;
31;
61;
71), wherein the sampling values of all N time signals are offset in time and superimposed on each other; and
B) a low-pass filter (12;
22;
32;
42;
52;
62;
72) with a bandwidth of B′
>
B which is connected to the time-division multiplex unit (11;
21;
31;
61;
71), into which the offset in time and superimposed sampling values can be jointly input, the low-pass filter having an output so that a composite signal can be tapped off from its output.
- 1 band-limited time signals, each with a bandwidth ≦
Specification