Table 5 Key parameters and usage characteristics of all the computational-efficient ANC systems
System | Key parameters | Usage characteristics | |
|---|---|---|---|
Narrowband | DFX-NANC | \(\mu_{i}\) | Time-domain update, delay compensation method |
BFX-NANC | \(\mu_{i}\), ρ | Time-domain update, bandpass filter method | |
LFX-NANC | \(\mu_{i}\), K, \(\hat{M}_{l}\) | Time-domain update, local secondary path estimation method | |
FE-NANC | \(\mu_{i}\) | Time-domain update, filtered-error structure method | |
LFE-NANC | \(\mu_{i}\), K, \(\hat{M}_{l}\) | Time-domain update, local secondary path estimation method and filtered-error structure method | |
CFX-NANC | \(\mu_{i}\) | Complex-valued update, complex signal representation method | |
Broadband | DF-BANC | μ, N, ε | Frequency-domain update, delayless frequency-domain adaptive filtering method |
DS-BANC | μ, G, D, N, J, ε | Time-domain update, delayless subband adaptive filtering method | |
MDS-BANC | μ, G, D, N, J, ε, \(\hat{M}_{s}\) | Time-domain update, modified delayless subband adaptive filtering method |